bug#2022: 23.0.60; Rmail buffer marked modified after saving it

[Glenn Morris]

Eli Zaretskii wrote:

> Emacs does not elsewhere consider seeing a file as its modification.
> Why should Rmail be different?

Because seeing a file (for the first time) modifies the
X-RMAIL-ATTRIBUTES: header, which is stored in the file.

I guess that if you just use rmail to visit a folder which has an
unseen mail, it will be marked modified in exactly the same way.