angular/angular.js — pull request #4479 by grantyb (2013-10-17 02:27:46+00:00)
Title: Fix ngShow and ngHide for issue #4401

Fix ngShow and ngHide so that the directives don't animate in/out their classes every time the watch expression is evaluated. They now only change when the watch expression's boolean value actually changes.

This is to address issue #4401