1) The compiz grid fullscreen effect shouldn't not be shown when dragging a maximized window from the panel
2) A fullscreen window get redecorated
1) is currently fixed in my branch using a workaround (since that mostly depends on compiz)
2) The fix is in progress, but is mostly caused by a race condition of X.
The bug is partly fixed in lp:~3v1n0/unity/panelmenu-fixes basically this bug contains two different issues:
1) The compiz grid fullscreen effect shouldn't not be shown when dragging a maximized window from the panel
2) A fullscreen window get redecorated
1) is currently fixed in my branch using a workaround (since that mostly depends on compiz)
2) The fix is in progress, but is mostly caused by a race condition of X.