[PATCH] server: Improve handling of cursor position clipping for empty rectangle.

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=47773

Your paranoid android.


=== wvistau64_he (32 bit report) ===

user32:
input.c:2160: Test failed: expected loop with WM_NCHITTEST messages