Fixing ASSERT on re-opening of Advanced F&R with cursor on a text style non-existing...

Addressing #7812.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@39886 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/frontends/qt4/LayoutBox.cpp b/src/frontends/qt4/LayoutBox.cpp
index c46ce4553837667ea10dd16e16a3bc166cf9349f..df4b076a279deaa9e57bd1299b423f2167188e85 100644 (file)
--- a/src/frontends/qt4/LayoutBox.cpp
+++ b/src/frontends/qt4/LayoutBox.cpp
@@ -534,6 +534,9 @@ void LayoutBox::set(docstring const & layout)
        if (!d->text_class_)
                return;
 
+       if (!(*d->text_class_).hasLayout(layout))
+               return;
+
        Layout const & lay = (*d->text_class_)[layout];
        QString newLayout = toqstr(lay.name());