Force BibTeX rerun upon add/remove/change citation (fixes #6955).

Reordering citations is one case where catching "Citation undefined
on page ..." doesn't catch the need for a bibtex rerun. This patch
ensures the proper ordering is obtained in pdf output without having
to resort to closing and reopening the LyX document.

src/insets/InsetCitation.cpp

@@ -45,7 +45,16 @@ ParamInfo InsetCitation::param_info_;
 
 InsetCitation::InsetCitation(Buffer * buf, InsetCommandParams const & p)
 	: InsetCommand(buf, p)
-{}
+{
+	buffer().removeBiblioTempFiles();
+}
+
+
+InsetCitation::~InsetCitation()
+{
+	if (isBufferLoaded())
+		buffer().removeBiblioTempFiles();
+}
 
 
 ParamInfo const & InsetCitation::findInfo(string const & /* cmdName */)
@@ -104,8 +113,10 @@ bool InsetCitation::isCompatibleCommand(string const & cmd)
 
 void InsetCitation::doDispatch(Cursor & cur, FuncRequest & cmd)
 {
-	if (cmd.action() == LFUN_INSET_MODIFY)
+	if (cmd.action() == LFUN_INSET_MODIFY) {
+		buffer().removeBiblioTempFiles();
 		cache.recalculate = true;
+	}
 	InsetCommand::doDispatch(cur, cmd);
 }
 

src/insets/InsetCitation.h

@@ -31,6 +31,8 @@ class InsetCitation : public InsetCommand
 public:
 	///
 	InsetCitation(Buffer * buf, InsetCommandParams const &);
+	///
+	~InsetCitation();
 
 	/// \name Public functions inherited from Inset class
 	//@{

status.20x

@@ -98,6 +98,8 @@ What's new
 
 - Use document language when exporting citations to LyXHTML (bug 7732).
 
+- Reordering citations in LyX is now rendered in the output (bug 6955).
+
 - Fix InsetLayout's LatexParam output: \begin{inset}[latexparam].