+++ This bug was initially created as a clone of Bug #1230854 +++

Description of problem:
The "undo" button doesn't work after moving a swimlane. It doesn't undo the previous action. Instead, it messes up the process flow. See the attached BP and video.

Version-Release number of selected component (if applicable):
bpmsuite-6.1.0.GA

Steps to Reproduce:
1. Open the attached BP
2. move the orange box at the bottom then click the 'Undo' button
3. The diagram is messed up

— Additional comment from Jeremy Lindop on 2015-06-11 11:53:46 EDT —

— Additional comment from JBoss Product and Program Management on 2015-06-11 12:00:09 EDT —

Since this issue was entered in Red Hat Bugzilla, the release flag has been
set to ? to ensure that it is properly evaluated for this release.