Introduce a new test image, which has an extent item with no inlined
extent data ref, but all keyed extent data ref.

Only in this case we can trigger fase data extent backref lost bug in
lowmem mode.

Signed-off-by: Qu Wenruo <w...@suse.com>
---
 .../020-extent-ref-cases/keyed_data_ref_only.img         | Bin 0 -> 4096 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 
tests/fsck-tests/020-extent-ref-cases/keyed_data_ref_only.img

diff --git a/tests/fsck-tests/020-extent-ref-cases/keyed_data_ref_only.img 
b/tests/fsck-tests/020-extent-ref-cases/keyed_data_ref_only.img
new file mode 100644
index 
0000000000000000000000000000000000000000..668589f46d330cb5d6ff10b108e62585875548ca
GIT binary patch
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-- 
2.15.0

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