Rolling back a Revision
If needed, you can roll back to a given revision state for the process.
Rolling back involves creating a new revision that reflects the contents of the desired revision. Note that the new revision may differ from the original if objects have been removed from the repository; any deleted objects will not appear in the new revision.
To roll back a revision:
1. In the list of revisions, tick the revision of your choice.
See Accessing Revisions.2. Click Roll Back.
A new revision appears in the list of revisions.