bug#43700: 28.0.50; Crash creating a second frame

[Eli Zaretskii]

> Cc: 43700@debbugs.gnu.org
> From: Andy Moreton <andrewjmoreton@gmail.com>
> Date: Sat, 3 Oct 2020 18:03:58 +0100
> 
> My Windows 10 system has:
>   - version 2.37   of Deja Vu Sans Mono
>   - version 2.00.1 of Liberation Mono
> 
> Hopefully you can reproduce this issue.

Thanks.  I needed to install Liberation Sans font, but once I have, I
can reproduce this.  On it.