We are in the process of migration of our old bug tracking system to JIRA. Our JIRA server is up and running, with license purchased. We verify that we imported all needed information and fix import errors. As long as the JIRA server is "in production", before any major fix we backup JIRA, restore backup in a local workstation and apply the fix to check that everything is correct before applying fix on production.
The thing is that when we restore backup on a local workstation it uses the same license as the production server.
Are there any drawbacks? We do not use the second server in production and no other users log in on it but just an admin (to run the tests).