single click triggers a double click message

r34286 on QEmu 0.9.1 without KQEmu

How to reproduce?
a) CPL Time/Date: click the year textbox. The year gets selected, altough the
cursor should be placed into that box - a double click behaviour.
b) CPL Mouse -> speed test for double clicks: one click is enough to open/close the folder.

What's happening?
co_IntTranslateMouseMessage (\subsystems\win32\win32k\ntuser\message.c) calls MsqIsDblClk (\subsystems\win32\win32k\ntuser\msgqueue.c) to check if a doubleclick happened. This function writes the message time into the system cursor information. Since this function gets called several times (three times in my tests) the message time and the click time are equal which is considered to be a double click.

This bug is not CORE-1959 updown controls don't get this particular doubleclick message.