In JsonDbOpensocialService's getPeople call, there is an old way of reading the $fields parameter. It checks for $fields which throws a notice since $fields is an associative array nowadays. Also, there is a nice self::adjustFields method that can be used to filter the fields.
I've adjusted getFields to use self::adjustFields, which also removes the missing index notice. I'll attach the patch.
|Transition||Time In Source Status||Execution Times||Last Executer||Last Execution Date|
|1d 4h 40m||1||Paul Lindner||13/Aug/10 17:48|
|Workflow||jira [ 12517818 ]||patch-available, re-open possible [ 12629904 ]|
|Resolution||Fixed [ 1 ]|
|Status||Open [ 1 ]||Resolved [ 5 ]|