bug#50096: args-out-of-range in redisplay_internal

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Date: Tue, 17 Aug 2021 19:06:41 +0300
> 
> I prepared a commit message for the tab-bar patch, everything was nice,
> but suddenly the commit failed with an unexpected error:
> 
> Debugger entered--Lisp error: (args-out-of-range 1737 1737)
>   redisplay_internal\ \(C\ function\)()
>   message("Running in foreground: %s" #("git --no-pager commit -m Redesign 
> tab-bar event processing (bug#41342, bug#41343)\n\nInstead of emitting 
> menu-item keys like [tab-1],\nemit normal mouse events like [mouse-1] and 
> [mouse-2]\nfor 

Is this reproducible?  If so, put a breakpoint on args_out_of_range,
and show the C-level backtrace from the error.