desktop notification stays persistently after clicking on "report spam"

Versions

• OS: Debian 11 (bullseye, testing)
• Gajim version: 1.2.2-1
• GTK version: 3.24.22
• Python-nbxmpp version: 1.0.2
• Appindicator integration plugin version: 1.2.6-1

Steps to reproduce the problem

If I get spam, I click on "report spam", but the the desktop notification of the spam message stays "forever" - I assume, that Gajim needs to remove it explicitely? I use the appindicator integration plugin btw. if that matters.