Accidentally updating your work
In most cases, the update
commands are disabled for content you have checked out, because
that content would always be up to date. However, an undesirable situation
can occur if a different user deletes the lock on checked-out content
(by dragging the lock file [.idlk] to the Recycle Bin [Windows]
or Trash [Mac OS]), and modifies the content. In this case,
the update commands can become enabled even while the content is
checked out to you, essentially allowing two people to edit the
content at the same time. Updating the content results in lost work.
For best results, do not delete the lock files.