If you create a RoomList channel without providing the 'Server' property (e.g. you want the XMPP server's default), you cannot read the property back to find out what the default is.
This is tested by search/no-server-property.py, which I recently added. I recently fixed the Server='' case, but omitting Server entirely worked for me when I added the test. So either way, fixed I think!
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