[PATCH 0/1] MR7044: comctl32/tests: Initialize hwnd = NULL before rebuild_toolbar(&hwnd).

[Alanas Tebuev (＠BZZZZ)]

https://gitlab.winehq.org/wine/wine/-/merge_requests/6737#note_86205

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https://gitlab.winehq.org/wine/wine/-/merge_requests/7044