1) Create Holiday Calendar and make Official.
2) Create Academic Calendar from blank, with start/end dates overlapping the holiday calendar. (Note: Currently unable to test with Acal created from copy due to other outstanding bugs.)
3) Holiday Calendars appear in dropdown menu.
4) Select Holiday Calendar and click Add.
EXPECTED: HCal is added without error.
ACTUAL: Error message saying "No Holiday Calendar selected"
Note, this does NOT seem to happen with academic calendars provided with the reference data.