Upon joining a chatroom, a subject MUST be sent, even when empty

Description

XEP-0045 specifies in section 7.2.15:

If there is no subject set, the room MUST return an empty <subject/> element.

Openfire doesn't send a subject element in this case, but should

Environment

None
Fixed

Assignee

Guus der Kinderen

Reporter

Guus der Kinderen