Ionic's collection-repeat is Iterating over functions in $firebaseArray object

ionic-v1
1

Hi,
When I use $firebaseArray to retrieve data from Firebase I get the following structure:

{
0: Object 
1: Object 
$$added: function ()
$$error: function ()
$$getKey: function ()
$$moved: function ()
$$notify: function ()
........
}

When iterating this data with collection-repeat in the DOM, the iterations are also on the functions and not only the objects resulting in a lot more DOM elements than needed.

Has anyone encountered this behaviour?