reply-all should reply to all irrespective of whether reply-to is set

[d99kris]

Description:
When performing Reply All (i.e. shortcut r) and the email being replied to has a Reply-To: header, the desired behavior should be to reply to all, and only use the Reply-To: value in place of the From: value, i.e. for the To: field in the response email being composed.

For regular Reply (i.e. shortcut R) no change is needed, it already replies using the Reply-To: address if set, otherwise using From: value for the To: field in the response email.

The above desired behavior is based on Gmail as of today (2024 May 18) and Alpine v2.26.

How to reproduce it:

Perform Reply All on an email with a Reply-To: header, for example a Github notification email.

Environment:

• Version: v4.62 (or earlier)
• OS / distro: Any (tested on macOS)