[Bug 57102] Textbox-border is missing if textbox is on topmost layer of e. g. a TabControl.

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57102

--- Comment #7 from William Horvath  ---
Created attachment 76995
  --> https://bugs.winehq.org/attachment.cgi?id=76995
A patch to work around the issue (GCC only)

This patch seems to prevent the issue from occurring when compiled with GCC
14.2.1 (-O2 or -O1). However, Clang 18.1.8 still exhibits the issue at any
optimization level.
It's not the correct way to fix it, but it should at least give a pointer in
the right direction as to where the problem lies.