Fix bug #5540: Crash in MathAtom on Undo.

[lyx.git] / src / CutAndPaste.cpp

diff --git a/src/CutAndPaste.cpp b/src/CutAndPaste.cpp
index 6ecc49a4aa138a0075ff752dab43628c58ff58d4..16db7a5976bdfdeed2d692273dd85910dd4d0cd5 100644 (file)
--- a/src/CutAndPaste.cpp
+++ b/src/CutAndPaste.cpp
@@ -431,14 +431,16 @@ void copySelectionHelper(Buffer const & buf, ParagraphList const & pars,
                // ERT paragraphs have the Language latex_language.
                // This is invalid outside of ERT, so we need to change it
                // to the buffer language.
-               if (it->ownerCode() == ERT_CODE || it->ownerCode() == LISTINGS_CODE) {
+               if (it->ownerCode() == ERT_CODE || it->ownerCode() == LISTINGS_CODE)
                        it->changeLanguage(buf.params(), latex_language, buf.language());
-               }
+
                it->setInsetOwner(0);
        }
 
-       // do not copy text (also nested in insets) which is marked as deleted
-       acceptChanges(copy_pars, buf.params());
+       // do not copy text (also nested in insets) which is marked as deleted,
+       // unless the whole selection was deleted
+       if (!isFullyDeleted(copy_pars))
+               acceptChanges(copy_pars, buf.params());
 
        DocumentClass * d = const_cast<DocumentClass *>(dc);
        cutstack.push(make_pair(copy_pars, d));