Infinite recursion ?

[David Masterson]

Haven't figured this out yet, but I seem to be hitting an "infinite
recursion" bug that eventually dies when it runs out of memory.

The scenario (so far) is trying to change an Org tag in the agenda
(':'). The command gives me the tags that I then edit and save whereupon
it sits in an infinite recursion until it hits a limit in Emacs. If I
quit, the files seem to have been updated, but the Agenda isn't.  I'm
still trying to figure out how to debug this.  Setting debug-on-quit was
not consistent and didn't seem to have a large list of function calls
(ie. the recursion).  Any ideas?

This is Emacs 26.3 with Orgmode 9.4.  I'm also using Org-Super-Agenda
from Melpa (20200310.1337).

Side question that might be related: org-agenda started positioning
itself at the end of the agenda rather than the beginning after building
the agenda.  I don't think I changed something for this.  What could
cause this?
-- 
David Masterson