cloning issue : strokes persist after releasing the mouse button

[pierrelabreche]

After using the undo button, cloning can persist while moving the cursor after button release ( i.e. not dragging ).
I saw another occurrence without using undo in the dialog sequence.

[jsachs]

If you can figure out what you were doing immediately prior to the happening, let me know. In the meantime it should be fixed in the next release, at least for Undo.