angular/angular.js — pull request #5688 by gonzaloruizdevilla (2014-01-08 19:41:17+00:00)
Title: fix(rootScope): $watchCollection returns in oldCollection a copy of the ...

...former array data

related to #1751
When watching arrays, $watchCollection returned the new data both in the newCollection
and the oldCollection arguments of the listener

Split from PR #3865