Hello,
A colleague send me a remark around the search issue.
I have a disabled user (he left the company) and I want to list all issues assigned to this user.
If my colleague uses the basic search (screen shot), he doesn't find user

However only if he uses the advanced search and search issues with user account, he finds issues.

I suppose that JIRA is not able to translate user because it's inactive and if we use advanced search, JIRA search the raw value (firstname.lastname) from the database and give the result.
For your information: we are connected on Active Directory for user management.
Someone could confirm me my theory?
Thank you