Create a polygon dataset using uDig 1.1-SC3.
Move the vertexes of the polygon or add vertexes.
Try to double-click -> nothing happens! (even though the new shape of the poly should be now be realised)
Commit the changes or select another tool -> the polygon reverts back to it's original state and changes are lost!
This behaviour doesn't occur every time a polygon is drawn and edited. If you don't see it happen the first time, draw another polygon and try again.
If Editing Blackboard is used and several polygons are selected, then editing works just fine..
No messages appear in the error log when this behaviour occurs.