ArraySyncManager, TypeError: Cannot read property '$$error' of null

[katowulf]

TypeError: Cannot read property '$$error' of null
at https://cdn.firebase.com/libs/angularfire/1.0.0/angularfire.min.js:12:1722
at https://cdn.firebase.com/libs/angularfire/1.0.0/angularfire.min.js:12:17446
at Array.forEach (native)
at Object.forEach (http://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.1/angular.js:300:11)
at g (https://cdn.firebase.com/libs/angularfire/1.0.0/angularfire.min.js:12:17419)
at http://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.1/angular.js:13200:28
at completeOutstandingRequest (http://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.1/angular.js:4003:10)
at http://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.1/angular.js:4309:7

[katowulf]

Occurs when attempting to access data which is restricted and getting permission_denied.

[mikepugh]

I've been seeing this a lot as I deal w/ permission_denied issue