- Created and edited all-day events.
- Migrated existing all-day events, which appeared to survive without problems. (Note that events all-day which were created or edited in the last couple of days `master` won't survive this mutation correctly and will need to be fixed.)
- Created and edited normal, recurring, and recurring all-day events.
- Swapped back to `stable`, created an event, specifically migrated it forward, made sure it survived with times intact.