Asterisk after saving

Hi all,
I noticed that in Ardour 9.2 (on Linux) the asterisk to the left of the title doesn’t disappear after saving. When closing the session, Ardour still asks if I want to save.
[Ardour 9.2 on Linux built from source]

Thanks,
a.

I’ve seen that happening with some plugins that constantly inform Ardour that their state changed…