Test that we can combine any combination of patches with empty and
non-empty messages, both with and without guilt.diffstat.  (All
patches are empty.)

Signed-off-by: Per Cederqvist <ced...@opera.com>
---
 regression/t-035.out | 467 +++++++++++++++++++++++++++++++++++++++++++++++++++
 regression/t-035.sh  |  62 +++++++
 2 files changed, 529 insertions(+)
 create mode 100644 regression/t-035.out
 create mode 100755 regression/t-035.sh

diff --git a/regression/t-035.out b/regression/t-035.out
new file mode 100644
index 0000000..cc16fb4
--- /dev/null
+++ b/regression/t-035.out
@@ -0,0 +1,467 @@
+% setup_repo
+% git config guilt.diffstat true
+%% empty + empty (diffstat=true)
+% guilt new empty-1
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..empty-1
+Patch applied.
+% guilt new empty-2
+% guilt pop
+Now at empty-1.
+% guilt push
+Applying patch..empty-2
+Patch applied.
+% guilt pop
+Now at empty-1.
+% guilt fold empty-2
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..empty-1
+Patch applied.
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 4ea806e306f0228a8ef41f186035e7b04097f1f2  .git/patches/master/status
+f 7d261b8caad0f161c21daf5de65eeb521ff8c067  .git/patches/master/empty-1
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f d28d87b88c1e24d637e390dc3603cfa7c1715711  .git/patches/master/series
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+r bde3d337af70f36836ad606c800d194006f883b3  .git/refs/patches/master/empty-1
+% guilt pop
+All patches popped.
+% guilt delete -f empty-1
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bacb4aad8a55fe4e7aa58a9ae169990bb764069f  .git/patches/master/series
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/status
+%% empty + nonempty (diffstat=true)
+% guilt new empty
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..empty
+Patch applied.
+% guilt new -f -s -m A commit message. nonempty
+% guilt pop
+Now at empty.
+% guilt push
+Applying patch..nonempty
+Patch applied.
+% guilt pop
+Now at empty.
+% guilt fold nonempty
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..empty
+Patch applied.
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 15aab0fd8b937eb3bb01841693f35dcb75da2faf  .git/patches/master/status
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/empty~
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 683678040eef9334d6329e00d5b9babda3e65b57  .git/patches/master/empty
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f a26a22287b500a2a372e42c2bab03599bbe37cdf  .git/patches/master/series
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+r 4eedaa32894fc07af3298d8c1178052942a3ca6a  .git/refs/patches/master/empty
+% guilt pop
+All patches popped.
+% guilt delete -f empty
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/empty~
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bacb4aad8a55fe4e7aa58a9ae169990bb764069f  .git/patches/master/series
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/status
+%% nonempty + empty (diffstat=true)
+% guilt new -f -s -m A commit message. nonempty
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..nonempty
+Patch applied.
+% guilt new empty
+% guilt pop
+Now at nonempty.
+% guilt push
+Applying patch..empty
+Patch applied.
+% guilt pop
+Now at nonempty.
+% guilt fold empty
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..nonempty
+Patch applied.
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 683678040eef9334d6329e00d5b9babda3e65b57  .git/patches/master/nonempty
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f c47ddc01337e3bb67a9968a8823a5ba12be67f77  .git/patches/master/series
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+f f7f068d44bf796d0f7cd14d27d1f48d6e659816a  .git/patches/master/status
+r 4eedaa32894fc07af3298d8c1178052942a3ca6a  .git/refs/patches/master/nonempty
+% guilt pop
+All patches popped.
+% guilt delete -f nonempty
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bacb4aad8a55fe4e7aa58a9ae169990bb764069f  .git/patches/master/series
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/status
+%% nonempty + nonempty (diffstat=true)
+% guilt new -f -s -m A commit message. nonempty-1
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..nonempty-1
+Patch applied.
+% guilt new -f -s -m Another commit message. nonempty-2
+% guilt pop
+Now at nonempty-1.
+% guilt push
+Applying patch..nonempty-2
+Patch applied.
+% guilt pop
+Now at nonempty-1.
+% guilt fold nonempty-2
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..nonempty-1
+Patch applied.
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 3b526c794741fb2d6b463f3245ab2f260fa74b7b  .git/patches/master/status
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 669c9685ce791098bb3573f80af6d720a3689f80  .git/patches/master/nonempty-1
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f a88f2625f128cfa307a52c8c2e84ed6c32a78d2b  .git/patches/master/series
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+r 895dfbc21bde85fcc666a353a6bd32eaec939082  .git/refs/patches/master/nonempty-1
+% guilt pop
+All patches popped.
+% guilt delete -f nonempty-1
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bacb4aad8a55fe4e7aa58a9ae169990bb764069f  .git/patches/master/series
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/status
+% git config guilt.diffstat false
+%% empty + empty (diffstat=false)
+% guilt new empty-1
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..empty-1
+Patch applied.
+% guilt new empty-2
+% guilt pop
+Now at empty-1.
+% guilt push
+Applying patch..empty-2
+Patch applied.
+% guilt pop
+Now at empty-1.
+% guilt fold empty-2
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..empty-1
+Patch applied.
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 4ea806e306f0228a8ef41f186035e7b04097f1f2  .git/patches/master/status
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f d28d87b88c1e24d637e390dc3603cfa7c1715711  .git/patches/master/series
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+r bde3d337af70f36836ad606c800d194006f883b3  .git/refs/patches/master/empty-1
+% guilt pop
+All patches popped.
+% guilt delete -f empty-1
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bacb4aad8a55fe4e7aa58a9ae169990bb764069f  .git/patches/master/series
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/status
+%% empty + nonempty (diffstat=false)
+% guilt new empty
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..empty
+Patch applied.
+% guilt new -f -s -m A commit message. nonempty
+% guilt pop
+Now at empty.
+% guilt push
+Applying patch..nonempty
+Patch applied.
+% guilt pop
+Now at empty.
+% guilt fold nonempty
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..empty
+Patch applied.
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 15aab0fd8b937eb3bb01841693f35dcb75da2faf  .git/patches/master/status
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/empty
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/empty~
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f a26a22287b500a2a372e42c2bab03599bbe37cdf  .git/patches/master/series
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+r 4eedaa32894fc07af3298d8c1178052942a3ca6a  .git/refs/patches/master/empty
+% guilt pop
+All patches popped.
+% guilt delete -f empty
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/empty~
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bacb4aad8a55fe4e7aa58a9ae169990bb764069f  .git/patches/master/series
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/status
+%% nonempty + empty (diffstat=false)
+% guilt new -f -s -m A commit message. nonempty
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..nonempty
+Patch applied.
+% guilt new empty
+% guilt pop
+Now at nonempty.
+% guilt push
+Applying patch..empty
+Patch applied.
+% guilt pop
+Now at nonempty.
+% guilt fold empty
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..nonempty
+Patch applied.
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f c47ddc01337e3bb67a9968a8823a5ba12be67f77  .git/patches/master/series
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+f f7f068d44bf796d0f7cd14d27d1f48d6e659816a  .git/patches/master/status
+r 4eedaa32894fc07af3298d8c1178052942a3ca6a  .git/refs/patches/master/nonempty
+% guilt pop
+All patches popped.
+% guilt delete -f nonempty
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bacb4aad8a55fe4e7aa58a9ae169990bb764069f  .git/patches/master/series
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/status
+%% nonempty + nonempty (diffstat=false)
+% guilt new -f -s -m A commit message. nonempty-1
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..nonempty-1
+Patch applied.
+% guilt new -f -s -m Another commit message. nonempty-2
+% guilt pop
+Now at nonempty-1.
+% guilt push
+Applying patch..nonempty-2
+Patch applied.
+% guilt pop
+Now at nonempty-1.
+% guilt fold nonempty-2
+% guilt pop
+All patches popped.
+% guilt push
+Applying patch..nonempty-1
+Patch applied.
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 3b526c794741fb2d6b463f3245ab2f260fa74b7b  .git/patches/master/status
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f a88f2625f128cfa307a52c8c2e84ed6c32a78d2b  .git/patches/master/series
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+r 895dfbc21bde85fcc666a353a6bd32eaec939082  .git/refs/patches/master/nonempty-1
+% guilt pop
+All patches popped.
+% guilt delete -f nonempty-1
+% list_files
+d .git/patches
+d .git/patches/master
+d .git/refs/patches
+d .git/refs/patches/master
+f 22930c6d1f1938f298a4fca51c57e4b47171db21  .git/patches/master/mode
+f 413390f3906f16f30b054a4fb86c1e014b964504  .git/patches/master/remove
+f 51fcfcf16db2903f19ab4a4a3caacd297ea9f6cd  .git/patches/master/nonempty~
+f 75c672c7dbec8e8275d26d720f499899d04912a4  .git/patches/master/nonempty-1~
+f 9c18cc7abe6b87f18503714a80a677b4094eb457  .git/patches/master/add
+f bacb4aad8a55fe4e7aa58a9ae169990bb764069f  .git/patches/master/series
+f bbdc17918ad7ba268ea90ebf0fb71e32e0f09a02  .git/patches/master/nonempty-2~
+f bc9ab2e0f5db99d483961e956e814d963f0309f8  .git/patches/master/modify
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-1~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty-2~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/empty~
+f da39a3ee5e6b4b0d3255bfef95601890afd80709  .git/patches/master/status
diff --git a/regression/t-035.sh b/regression/t-035.sh
new file mode 100755
index 0000000..e914b32
--- /dev/null
+++ b/regression/t-035.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+#
+# Test the fold code
+#
+
+source "$REG_DIR/scaffold"
+
+cmd setup_repo
+
+function fixup_time_info
+{
+       cmd guilt pop
+       touch -a -m -t "$TOUCH_DATE" ".git/patches/master/$1"
+       cmd guilt push
+}
+
+function empty_patch
+{
+       cmd guilt new "empty$1"
+       fixup_time_info "empty$1"
+}
+
+function nonempty_patch
+{
+       if [ "$1" = -2 ]; then
+               msg="Another commit message."
+       else
+               msg="A commit message."
+       fi
+
+       cmd guilt new -f -s -m "$msg" "nonempty$1"
+       fixup_time_info "nonempty$1"
+}
+
+for using_diffstat in true false; do
+       cmd git config guilt.diffstat $using_diffstat
+       for patcha in empty nonempty; do
+               for patchb in empty nonempty; do
+
+                       if [ $patcha = $patchb ]
+                       then
+                               suffixa=-1
+                               suffixb=-2
+                       else
+                               suffixa=
+                               suffixb=
+                       fi
+
+                       echo "%% $patcha + $patchb (diffstat=$using_diffstat)"
+                       ${patcha}_patch $suffixa
+                       ${patchb}_patch $suffixb
+                       cmd guilt pop
+                       cmd guilt fold $patchb$suffixb
+                       fixup_time_info $patcha$suffixa
+                       cmd list_files
+                       cmd guilt pop
+                       cmd guilt delete -f $patcha$suffixa
+                       cmd list_files
+
+               done
+       done
+done
-- 
1.8.3.1

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