mod_compat_roles: Fix attempt to index a nil value #1847
permissions[] is not a map with role names as keys since 817bc9873fc2
but instead a level with host names were added. This was likely an
oversight.
Refactored towards railroad.
---
summary: Presence deduplication module
labels:
- 'Stage-Alpha'
...
This module tries to squash incoming identical presence stanzas to save
some bandwidth at the cost of increased memory use.
Configuration
=============
Option Type Default
------------------------------ -------- ---------
presence\_dedup\_cache\_size number `100`
The only setting controls how many presence stanzas *per session* are
kept in memory for comparing with incoming presenece.
Requires Prosody 0.10 or later.