[LyX/master] Reset counters before we re-run updateBuffer when the bibfiles change.

[Richard Heck]

commit 64acc06b919e08001cb8ff8d5b69e0902176fe35
Author: Richard Heck <rikih...@lyx.org>
Date:   Thu Apr 19 22:12:44 2018 -0400

    Reset counters before we re-run updateBuffer when the bibfiles change.
    
    Fixes a bug reported by Pavel here:
      https://marc.info/?l=lyx-devel&m=152407889727665&w=2
---
 src/Buffer.cpp |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 97ecd4d..7569a4e 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -4801,10 +4801,18 @@ void Buffer::updateBuffer(UpdateScope scope, UpdateType 
utype) const
                // labels. Nothing else will have changed. So we could create a 
new 
                // UpdateType that would signal that fact, if we needed to do 
so.
                parit = cbuf.par_iterator_begin();
+               // we will be re-doing the counters and references and such.
+               textclass.counters().reset();
+               clearReferenceCache();
+               // we should not need to do this again?
+               // updateMacros();
+               setChangesPresent(false);
                updateBuffer(parit, utype);
        }
-       else
+       else {
+               // this is also set to true on the other path, by 
reloadBibInfoCache.
                d->bibinfo_cache_valid_ = true;
+       }
        d->cite_labels_valid_ = true;
        /// FIXME: Perf
        cbuf.tocBackend().update(true, utype);