Timo Kreuzer 3d476667b6 [USER32]
Patch by Thomas Faber:
When the Edit receives WM_KILLFOCUS, it will notify its parent (the ListView)
of losing focus, which in turn will send WM_CLOSE to destroy the edit control.
This will cause the edit to receive WM_DESTROY and free the EDITSTATE.
When control returns to the WM_KILLFOCUS handler, this would call
EDIT_UnlockBuffer on the now invalid EDITSTATE.
Fix this by checking the validity of the EDITSTATE before calling EDIT_UnlockBuffer.
Fixes explorer crash, when cancelling file renaming.
See issue #5895 for more details.

svn path=/trunk/; revision=50956
2011-03-02 13:23:13 +00:00
2011-03-02 13:23:13 +00:00
2010-12-26 16:28:51 +00:00
2011-03-02 01:15:10 +00:00
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