Collection-repeat error


I am having some problems with the collection-repeat feature in 1.0-beta.5b. When I use collection-repeat within a directive that defines a scope then I get the following error:

Error: [$rootScope:inprog] $digest already in progress

The screen then only shows the first item in the list until you scroll it off the top and then it displays the remaining items.

Here is a codepen with it working (no scope):

Here is a codepen with it not working (scope defined):

I have another question concerning item sizing. If I set the collection-item-height to 52 then I need to set the css height to 51px in order to avoid doubled divider lines between items. Is this the expected behavior or should it interpret the height differently?