[PATCH resend] gdi32: Skip edge processing when the area is empty.

[Huw Davies]

On Mon, May 25, 2020 at 03:02:34PM +0300, Gabriel Ivăncescu wrote:
> Fixes a regression introduced by 9bc6f004ceccf3963584a4f7f4681b5c0578c214,
> which caused the assert to fail under specific circumstances, and break
> some apps.

Could you add a test?  Also, which apps?  I don't see any bugs with
this SHA1 listed as a regression.

Huw.