mod_firewall: spam-blocking.pfw: Remove requirement for invites to have no body Some clients (e.g. Gajim) send a body, which I guess makes sense. The bare JID sender check should already make it hard to bypass this (i.e. a normal client putting muc#user into a normal chat message shouldn't bypass the usual message filters).

---
labels:
- 'Stage-Obsolete'
summary: 'XEP-0313: Message Archive Management'
superseded_by: mod_mam
...

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