When creating a mirror image for testing purposes of our Jira instance, we then need to delete the application link to the Production instance of Confluence.
This then breaks the application link between our Production Jira and Production Confluences as well.
The only solution that has worked is to delete then re-add the application links on both sides (same URL as was there in the first place).
However:
Jira macros in Confluence display "Error rendering macro 'jira' : Unable to locate JIRA server for this macro. It may be due to Application Link configuration".

Steps to fix:
1. Edit page
2. Edit macro
3. The macro still contains the issue number. Click the magnifying glass, re-find the correct issue.
4. Save page.

Since the macro is saving the issue number, and the Jira link is the same (just re-adding it), I shouldn't have to go through every Confluence page containing a Jira macro just to re-find information that's already populated in it.
Ideal behavior is for the macro to take the existing search query it contains and search in the new application link for it, THEN issue an error if it can't find it.