tdf#131679 sw: follow-up: Unmark before SetSelection()

Backporting this to 6.4, it crashes in CppunitTest_desktop_lib because
some sidebar is loaded from SwView::AttrChangedNotify()/SelectShell()
and that ends up calling SwView::StateTabWin() about 40 stack frames
later and this calls SwFEShell::GetAnyCurRect() which gets the still
selected fly but its page frame is null.

So make sure shells don't see the deleted fly.

Change-Id: I6e994b26949d195aa9f326f4da193c69b0ee59c8
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/104815
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@cib.de>

0 files changed, 0 insertions, 0 deletions