mod_rest: Fix nested message stanzas in XEP-0297 containers It's all a bit awkward because it doesn't normally use the whole schema directly, but rather checks which stanza type is used and picks out that property as a schema. Which also prevents references from working.

---
labels:
- 'Stage-Obsolete'
summary: 'Connection-level rate limiting'
superseded_by: mod_limits
...

Since Prosody 0.10, this module is [included in Prosody](https://prosody.im/doc/modules/mod_limits), you will be redirected there shortly.