E_WARNING when editing custom field with trigger-based logging turned on
- Turn on logging (admin - system settings - misc).
- Turn off popups so you can see the warning (admin - customize - display prefs) (or install the loudnotices extension).
- Edit an existing custom field, e.g. just change the label, or don't even do anything and just click save.
Notice: Undefined index: ADD in CRM_Logging_Schema->fixSchemaDifferencesFor() (line 444 of .../CRM/Logging/Schema.php).
Warning: Invalid argument supplied for foreach() in CRM_Logging_Schema->fixSchemaDifferencesFor() (line 444 of .../CRM/Logging/Schema.php).
This might be sort of recent just not sure yet when it started.