The function `scale_font_metrics()` in `win32u/font.c` was generating a division by zero exception in one of the `comctl32` tests (`status.ok`). This patch just short-circuits the ratio check in the function in case `tm->tmHeight == 0`. This was enough to allow the tests to pass.
--
https://gitlab.winehq.org/wine/wine/-/merge_requests/1192