Fix guest users never matched a 'none' clause despite not having any custom fields
Fix "match none" behaviour not working as expected on empty multi-choice selections
Trigger user-promotions on associating/dissociating a connected account
Requires php 7.0+ Confirmed XF2.2 support
Require XF2.1+ Adds an explicit "match none" option for custom fields, as stock XF has selected empty custom field matches any. Please review any notices or user promotions to ensure they still do what is expected
