ngRepeat fails with sparse Arrays

[morrica]

ngRepeat iterates over the spaces in a sparse array. If the array is missing one element this leads to an extra element being created by ngRepeat. If the array has more than one element missing the ngRepeat fails because it sees the missing elements as duplicates.

See Plunk: http://plnkr.co/edit/uvzROas6NHVzOzmfSoJi?p=preview

This is in contrast to the behavior of for(x in array) which only iterates over the elements that are actually present in the array.

Tested with angularjs 1.3.8.

[petebacondarwin]

This was changed in angular.forEach here 3623019

I wonder if we should do it for ngRepeat too?

[caitp]

You can sign this to me, it's broken (sparse arrays are dumb, but they aren't going anywhere)

[caitp]

Assign grrr phone