Issue Summary

After auto-conversion (JIM → JWI), multiselect custom fields in Jira Work Item macro render values stacked vertically. Jira Legacy macro rendered the values comma-separated/inline

Steps to Reproduce

 1.  Create a page with Jira Legacy macro that includes a multiselect custom field column 
 2.  Trigger conversion 
 3.  View the page.

Expected Results

Multiselect values render inline (comma-separated), matching Jira Legacy macro behavior.

Actual Results

Multiselect values render vertically, one per line — making tables taller and harder to read; impacts export fidelity.

Workaround

As a workaround, affected pages can be restored individually to a version prior to the automatic conversion by using the Confluence page history feature. This allows reverting the changes introduced by the conversion on a page-by-page basis.