bug#46577: 28.0.50; Error: "Agenda file ... is not in Org mode"

[Michael Heerdegen]

Michael Heerdegen <michael_heerdegen@web.de> writes:

> | Debugger entered--Lisp error: (error "Agenda file
> | /home/micha/gnu-emacs/todo/todo.org is not in Org mode")

This class of errors disappeared after I had manually deleted all of my
.elc files.  So this bug is solved.

In one sense.  There has been an backward incompatible change,
obviously.  What will happen when people will upgrade to an Emacs
version including these changes?  Are there precautions?

Because of this question I'll leave this report open for now.  If you
are sure there is no problem to expect or the issue has been discussed,
you can close this report.

Thanks,

Michael.