Team Calendar macros on Confluence pages are not updated following migration

Issue Summary

On Confluence Server/Data Center, if a page contains a Team Calendar macro, the macro fails to work once the page is migrated using the Confluence Cloud Migration Assistant. This is because Team Calendars are migrated separately and the new calendar identifier is not reflected in the configuration of the macro. The migrated page is broken because it is still referring to the calendar id on Confluence Server/Data Center.

Steps to Reproduce

1. On Confluence Server:
   1. Create new Team Calendar
   2. Create page with macro "Team Calendars"
2. Migrate the space with the target page to Cloud using Confluence Cloud Migration Assistant
3. Migrate Team Calendars using the workaround script in MIG-124 (https://bitbucket.org/atlassianlabs/team-calendars/src/master/)
4. On Confluence Cloud:
   1. Navigate to the migrated page in Cloud
5. The macro will not correctly render

Expected Results

1. When migrating, the team calendar identifier value should get updated to the new team calendar identifier in Confluence Cloud

Actual Results

1. The team calendar ID remains the same

Workaround

Contact Atlassian support.