Maintenance: Add tests for the `stable`->`develop` migration path.
Maintenance: Add tests for the `stable`->`develop` migration path.

zammad/zammad,monotek/zammad,monotek/zammad,zammad/zammad,zammad/zammad,zammad/zammad,monotek/zammad,zammad/zammad,monotek/zammad,monotek/zammad,zammad/zammad,monotek/zammad