[LyX/master] Clear bibfile cache when set of bibliography files change

[Juergen Spitzmueller]

commit 4115d2487f57f58774ee2846aa2b35818c0bc1b9
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Sat Oct 13 11:06:24 2018 +0200

    Clear bibfile cache when set of bibliography files change
    
    Part of #9158
---
 src/Buffer.cpp             |    8 +++++++-
 src/Buffer.h               |    2 ++
 src/insets/InsetBibtex.cpp |    1 +
 3 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 64e4e0f..2809fdf 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -2492,6 +2492,12 @@ void Buffer::checkIfBibInfoCacheIsValid() const
 }
 
 
+void Buffer::clearBibFileCache() const
+{
+       bibfileCache.clear();
+}
+
+
 void Buffer::reloadBibInfoCache(bool const force) const
 {
        // use the master's cache
@@ -2511,7 +2517,7 @@ void Buffer::reloadBibInfoCache(bool const force) const
        // FIXME Is this sufficient? Or should we also force that
        // in some other cases? If so, then it is easy enough to
        // add the following line in some other places.
-       bibfileCache.clear();
+       clearBibFileCache();
        d->bibinfo_.clear();
        FileNameList checkedFiles;
        collectBibKeys(checkedFiles);
diff --git a/src/Buffer.h b/src/Buffer.h
index c68f09d..4037e5a 100644
--- a/src/Buffer.h
+++ b/src/Buffer.h
@@ -500,6 +500,8 @@ public:
        /// Calling this method invalidates the cache and so requires a
        /// re-read.
        void invalidateBibinfoCache() const;
+       /// Clear the bibfiles cache
+       void clearBibFileCache() const;
        /// Updates the cached bibliography information, checking first to see
        /// whether the cache is valid. If so, we do nothing. If not, then we
        /// reload all the BibTeX info.
diff --git a/src/insets/InsetBibtex.cpp b/src/insets/InsetBibtex.cpp
index d579863..ae76a7f 100644
--- a/src/insets/InsetBibtex.cpp
+++ b/src/insets/InsetBibtex.cpp
@@ -105,6 +105,7 @@ void InsetBibtex::doDispatch(Cursor & cur, FuncRequest & 
cmd)
 
                cur.recordUndo();
                setParams(p);
+               cur.buffer()->clearBibFileCache();
                cur.forceBufferUpdate();
                break;
        }