I have two separate Jira instances on Jira server,
I'd like Jira instance 1 to be the 'production' Jira and Jira instance 2 to be a 'test' Jira.
Is there a way to link them such that Jira 1 updates Jira 2 (with prpject / issue data etc), but when I make changes in Jira 2, it does not impact Jira 1?