angular/angular.js — pull request #9757 by gkalpak (2014-10-23 10:19:15+00:00)
Title: fix(filterFilter): correctly handle deep expression objects

Previously, trying to use a deep expression object (i.e. an object whose properties can be objects themselves) did not work correctly. This commit refactors `filterFilter`, making it simpler and adding support for filtering collections of arbitrarily deep objects.

Closes #9698