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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
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A free Windows-compatible Operating System
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