bug#44794: 28.0.50; Frame creation broken with (tool-bar-mode -1)

[Eli Zaretskii]

> From: David Fussner <dfussner@googlemail.com>
> Date: Sun, 22 Nov 2020 18:54:04 +0000
> Cc: Stefan Kangas <stefan@marxist.se>, 44794@debbugs.gnu.org
> 
> Forgive my incompetence, but my idea for how to do that appears to be
> faulty -- what would be the simplest way to detect which branch the
> code takes?

By stepping with GDB through that code.  (But you already found the
answer by a different method.)