tdf#141613 sw: fix crash at header/footer undo

Undoing the creation of a header/footer used to leave their
corresponding document nodes intact, causing the node index
of a previous undo entry to point to the wrong node.

We now force the destruction of the header/footer nodes manually.
We also cut the redo chain which loses the redo history, but solves
another crash for now (when redoing the creation of the header).

The proper solution would be to create a new SwUndo* derived class
from scratch to represent the creation of a new header/footer section
in the document.

Regression from commit 8d8486f43c1a8a51157bfc3e0b87090b05a9229e
(tdf#46561 sw: fix lost undo stack setting header/footer)

Change-Id: I97188aa8ded802bc6b6fa88ddd83a95c40de8bc3
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/114667
Tested-by: László Németh <nemeth@numbertext.org>
Reviewed-by: László Németh <nemeth@numbertext.org>

0 files changed, 0 insertions, 0 deletions