Notification mute icon remains after mute period ends

• ubuntu 22.04
• gajim 1.7.2 gajim-nightly

Actual behavior

The notification muting icon remains on the chat list row after the mute period has ended, lasting until the user of that chat is mentioned, at which point the icon disappears.

Expected behavior

I expect that the mute icon will disappear after the mute period ends. If it is desired that there be an icon to indicate that a chat was previously muted, I would expect it to be a different icon or for the icon to have a different color.