[LyX/2.3.x] amend 1c623ffe8f2e34e

[Juergen Spitzmueller]

commit 99094ca7c477090924ebd9657cfe7ffcae823a27
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Thu Mar 22 23:37:19 2018 +0100

    amend 1c623ffe8f2e34e
    
    (cherry picked from commit 6415d986ba32373d3c3915ec77473dfa2e2b7ad3)
---
 src/Buffer.cpp               |   19 ++++++++++++++-----
 src/insets/InsetCitation.cpp |    2 ++
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 6dd1d89..a25f91d 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -2467,6 +2467,9 @@ void Buffer::collectBibKeys(FileNameList & checkedFiles) 
const
 
 void Buffer::addBiblioInfo(BiblioInfo const & bin) const
 {
+       // We add the biblio info to the master buffer,
+       // if there is one, but also to every single buffer,
+       // in case a child is compiled alone.
        BiblioInfo & bi = d->bibinfo_;
        bi.mergeBiblioInfo(bin);
 
@@ -2477,12 +2480,18 @@ void Buffer::addBiblioInfo(BiblioInfo const & bin) const
 }
 
 
-void Buffer::addBibTeXInfo(docstring const & key, BibTeXInfo const & bi) const
+void Buffer::addBibTeXInfo(docstring const & key, BibTeXInfo const & bin) const
 {
-       Buffer const * tmp = masterBuffer();
-       BiblioInfo & masterbi = (tmp == this) ?
-               d->bibinfo_ : tmp->d->bibinfo_;
-       masterbi[key] = bi;
+       // We add the bibtex info to the master buffer,
+       // if there is one, but also to every single buffer,
+       // in case a child is compiled alone.
+       BiblioInfo & bi = d->bibinfo_;
+       bi[key] = bin;
+
+       if (parent() != 0) {
+               BiblioInfo & masterbi = parent()->d->bibinfo_;
+               masterbi[key] = bin;
+       }
 }
 
 
diff --git a/src/insets/InsetCitation.cpp b/src/insets/InsetCitation.cpp
index 6217795..11b8943 100644
--- a/src/insets/InsetCitation.cpp
+++ b/src/insets/InsetCitation.cpp
@@ -545,6 +545,8 @@ void InsetCitation::forOutliner(docstring & os, size_t 
const, bool const) const
 // engine, e.g. \cite[]{} for the basic engine.
 void InsetCitation::latex(otexstream & os, OutputParams const & runparams) 
const
 {
+       // When this is a child compiled on its own, we use the childs
+       // own bibinfo, else the master's
        BiblioInfo const & bi = runparams.is_child
                        ? buffer().masterBibInfo() : buffer().bibInfo();
        docstring const key = getParam("key");