Comment 2 for bug 1851434

Marking this Confirmed and adding a reference to bug 1827901, which reports a similar inability to override another event:

PATRON_EXCEEDS_LONGOVERDUE_COUNT

The problem with overriding happens in Checkout as well as Renewal, so both lists of overrideable events in that file need the two additions:

PATRON_EXCEEDS_LONGOVERDUE_COUNT
COPY_NOT_AVAILABLE

Josh, would you like to modify your branch? I'll be happy to test.