mod_c2s_limit_sessions: Fix check when it's the first connection Creation of the sessions[username] entry happens after the "pre-resource-bind" event, before the "resource-bind" event. Thus, for a users first connection, it may not exist. This led to an 'attempt to index a nil value' error, fixed here.

---
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.