When a user breaks the lock of a study another user has open in the viewer, the first user receives a pop-up notice to inform them they no longer have write permissions for the study, and the name of the user who took it.
The first user can only reclaim the lock by closing the viewer (prompts to save work to the local hard disk), and reopening the study. The first user can restore the existing state after reclaiming the lock from the other user, and importing the information saved on the local disk. Open the report panel and click restore to restore the information.