When ending a drag in the window the cursor will be wrong until the mouse
is moved again. This is because the item being dragged isn't added
until after the enter event.
Also, when picking up an item while moving the mouse the cursor can switch
back to a non-drag cursor before the drag begins. This is because of a
slight delay between button click and drag start.
Finally picking up or dropping an item under a second pointer could cause
that pointer to have the wrong cursor.
Closes one of the issues in bug 56298
https://bugs.freedesktop.org/show_bug.cgi?id=56298
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Tested-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
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