[LyX/master] Handle deleted BibTeX/Biblatex bibliographies

[Juergen Spitzmueller]

commit 339424ce0083693cb274a042d2460cec77104ff1
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Fri Mar 6 13:49:10 2020 +0100

    Handle deleted BibTeX/Biblatex bibliographies
    
    Since we cannot strike-out these, we output a placeholder when
    show changes in output is active.
    
    Fixes #11762
---
 src/insets/InsetBibtex.cpp |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/src/insets/InsetBibtex.cpp b/src/insets/InsetBibtex.cpp
index e2b88ca..bf70c44 100644
--- a/src/insets/InsetBibtex.cpp
+++ b/src/insets/InsetBibtex.cpp
@@ -266,6 +266,15 @@ void InsetBibtex::latex(otexstream & os, OutputParams const & runparams) const
 	    && buffer().params().multibib == "child")
 		return;
 
+	if (runparams.inDeletedInset) {
+		// We cannot strike-out bibligraphies,
+		// so we just output a note.
+		os << "\\textbf{"
+		   << buffer().B_("[BIBLIOGRAPHY DELETED!]")
+		   << "}";
+		return;
+	}
+
 	string style = to_utf8(getParam("options")); // maybe empty! and with bibtotoc
 	string bibtotoc;
 	if (prefixIs(style, "bibtotoc")) {