Subject: bug#53809: 29.0.50; fatal error: assertion failed: string_immovable_p (bytestr)

From: Gregor Zattler <[email-masked]>
Date: Mon, 07 Feb 2022 16:19:03 +0100

Hi Mattias,
* Mattias Engdegård <[email-masked]> [2022-02-07; 16:01]:
> 7 feb. 2022 kl. 15.30 skrev Eli Zaretskii <[email-masked]>:
>
>>> Lisp Backtrace:
>>> "gnus-alias-init" (0xffffacc0)
>
> What is that `gnus-alias-init`? I can't find anything like it in the Emacs tree.

It's from a package, called gnus-alias, which is rather old.
It allows for automatic stetting of some email headers
according to correspondent.
https://melpa.org/#/gnus-alias

With the technical details, I cannot help, sorry.

Thanks, Gregor