[LyX/2.3.2-staging] save session when we save a buffer

[Jean-Marc Lasgouttes]

commit 257f978d626d272abc2212bdd4c3e64a65eacf63
Author: Alexander Dunlap <alexander.dun...@gmail.com>
Date:   Thu Feb 15 11:28:34 2018 -0800

    save session when we save a buffer
    
    Implements enhancement #10712.
    
    (cherry picked from commit cca365f26c7d541cc13453fc42fc9b6de7736319)
---
 src/frontends/qt4/GuiView.cpp |    5 ++++-
 status.23x                    |    2 ++
 2 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/src/frontends/qt4/GuiView.cpp b/src/frontends/qt4/GuiView.cpp
index 2aee273..361439b 100644
--- a/src/frontends/qt4/GuiView.cpp
+++ b/src/frontends/qt4/GuiView.cpp
@@ -2228,8 +2228,10 @@ Buffer * GuiView::loadDocument(FileName const & 
filename, bool tolastfiles)
        setBuffer(newBuffer);
        newBuffer->errors("Parse");
 
-       if (tolastfiles)
+       if (tolastfiles) {
                theSession().lastFiles().add(filename);
+               theSession().writeFile();
+  }
 
        return newBuffer;
 }
@@ -2768,6 +2770,7 @@ bool GuiView::saveBuffer(Buffer & b, FileName const & fn)
        bool const success = (fn.empty() ? b.save() : b.saveAs(fn));
        if (success) {
                theSession().lastFiles().add(b.fileName());
+               theSession().writeFile();
                return true;
        }
 
diff --git a/status.23x b/status.23x
index 726bcf4..65854cb 100644
--- a/status.23x
+++ b/status.23x
@@ -67,6 +67,8 @@ What's new
 - Fix display of citation labels when pasting from a document
   with other citation type (bug 10829).
 
+- Save the list of recent files when a file is open/saved so that it
+  is up to date after a crash (bug 10712).
 
 * INTERNALS