I have a client evaluating this add-on and we created a Post Function to Move Issue to another workflow on transition. Once issue is moved, the following occurs:

1) The original issue key is no longer searchable in JIRA
2) When using the same Post function to move it back to the original workflow, neither the original issue key, nor the second issue key are searchable
3) When looking at "Activity" for the ticket that has been moved, all user activity on all issues displays under the "All" tab in Activity

Is 1) and 2) a bug or something that we configured incorrectly? This is a really big deal for our client that wants to purchase this add-on.
Is 3) a display or configuration issue we missed once the add-on was installed?