Subject: bug#56527: 28.1; Crash on macOS with magit

From: Jonathan Mitchell <[email-masked]>
Date: Thu, 14 Jul 2022 10:21:37 -0500

I reran the test with another instance of the same debug executable but
with the './emacs -Q' option. Similar steps as last time--I typed 'M-x
magit' and pressed 'l' to enter the log buffer.

This time it failed at another assertion:
"insdel.c:295: Emacs fatal error: assertion failed: m->bytepos >=
m->charpos && m->bytepos - m->charpos <= Z_BYTE - Z"

New debug backtrace is attached.