Hello,
I haven't found an answer to this but like to ask anyway.
We have a scenario where by a ticket can pass through multiple approvers. In the first instance a request goes to the department manager, then based on certain field conditions to the next level.
I have been asked to find out if its possible to prevent a single person having to look at the same ticket at 2 different approval levels.
Example:
User A logs a ticket for department X, which goes to his line manager.
It then goes to a 2nd stage approval which is done by department Y.
His line manager also happens to be the 3rd approval in this chain (regardless of department). Is it possible for Jira to know this person has already approved the ticket?
Sorry if this does not make sense. If you need me to clarify then please let me know.
If the answer is a straight no then that's fine as well. 
Many thanks
Mihir