The #ifdef prevents setting the variable, es, to NULL, which lead to an illegal access.
This didn't match dll/comctl32/edit.c .
Patch by 'I_Kill_Bugs' contributor.
When we unselect text after the WM_CBLOSTTEXTFOCUS message,
make sure we also forget we have been focused at all;
otherwise the edit may become focused again, but with an
empty text selection.
CORE-10266