Zarel/Pokemon-Showdown — pull request #887 by TalkTakesTime (2014-05-02 01:05:25+00:00)
Title: Wide/Quick Guard should increment the StallMove counter

Wide Guard and Quick Guard can be used indefinitely without chance of failure; however, using Protect/Detect etc after using Quick Guard or Wide Guard should have the same chance of failure as they would if they were used after a chain of themselves.

http://www.smogon.com/forums/threads/battle-mechanics-research.3489239/page-36#post-4941980