I've reported the following bug upstream:
Consider a mailbox with a message as follows:
From x@y.invalid Thu Jan 16 09:54:16 2025
From: Name (comment) <x@y.invalid>
Subject: msg
Mutt 2.2.13 displays
From: Name <x@y.invalid>
instead of
From: Name (comment) <x@y.invalid>
This has the effect to hide important information when it is put under
the form of a RFC822/2822/5322 comment, such as added after address
rewriting to solve DMARC's failures[*], which is done by the Sympa
mailing-list management software. The comment is also dropped when
replying to the "From:" address (and obviously, if this is copy-pasted).
[*] https://dmarcreport.com/blog/solving-dmarcs-failures-with-mailing-lists/
So, as a user, one may not notice that the address has actually been
rewritten, and as a consequence, one may send a private message to the
whole mailing-list. Experience showed that when the comment had not
been added yet here at ENS-Lyon, many users sent private messages to
the lists. A comment under the form "original-address via list-name
Mailing List" is now added, but Mutt does not show it, contrary to
other MUAs.