mod_sasl2_fast: Improve handling when SASL profile unexpectedly lacks CB
This fixes a traceback reported by riau, but likely does not solve the
underlying cause, whatever that is.
---
labels:
summary: 'Component round-robin load balancing module'
...
Introduction
============
This module enables multiple instances of external components to connect
at the same time, and does round-robin load-balancing of incoming
stanzas.
Example
=======
Component "test.example.com"
modules_enabled = { "component_roundrobin" }
-- Other component options such as secrets here