BYOND Version:494.1127
Operating System:Windows 7 Home Premium 64-bit
Web Browser:Firefox 11.0
Applies to:Dream Seeker
Status: Resolved (494.1030)

This issue has been resolved.
This is a simple output of the 3 arguments passed in DblClick() and MouseDown() during a double click:
MouseDown:   the turf   icon-x=17;icon-y=18;left=1;screen-loc=10:17,10:18
MouseDown: map icon-x=17;icon-y=18;left=1;screen-loc=map:10:17,10:18
DblClick: the turf icon-x=17;icon-y=18;left=1;screen-loc=map:10:17,10:18
The screen-loc in DblClick and the MouseDown during a double click has the map name included in it.
The location provided in the MouseDown during a double click sends a control instead of a turf.
MouseUp and Click seem to remain consistent during double clicks.
Lummox JR resolved issue