Problem with /invite-all-from command


I have created a new channel and want to copy the member-list from a different channel.
Usually /invite-all-from #room works fine, but in my case the parsing seems to be broken.
The channel name contains “.” (e.g., “#room.a.3”) and this command
/invite-all-from #room.a.3
yields this error message: The channel #room does not exist.

Any ideas?

Server Setup Information

Version 1.3.2
Version der Anwendungsumgebung 1.5.2
Datenbankmigration 149
Datenbankmigrationsdatum Wed Dec 11 2019 10:54:55 GMT+0100 (Mitteleuropäische Normalzeit)
Installationsdatum Tue Apr 09 2019 14:52:51 GMT+0200 (Mitteleuropäische Sommerzeit)
Laufzeit 114 Tage, 4 Stunden, 59 Minuten, 17 Sekunden
Deployment-ID sBvyPSXEbvraYwMeX
PID 20
Laufende Instanzen 1
OpLog Aktiviert