From 0915bd786b24bfbdcdb31919a6c6836e4c89a6f0 Mon Sep 17 00:00:00 2001
From: Matthew Wild
As per XEP-0359 security considerations, clients MUST only trust a <stanza-id> - element with a 'by' attribute that matches the MUC's own JID, and MUST ignore any such - element in MUCs that do not announce XEP-0359 support.
- +As per XEP-0359 security considerations, if XEP-0359 support is not announced then + <stanza-id/> elements with a 'by' attribute that match the MUC's own JID should + be considered spoofed and MUST be ignored.