facebook/react — pull request #1968 by spicyj (2014-08-01 01:47:02+00:00)
Title: Don't add top-level events for uncontrolled inputs

Fixes #1964.

Test Plan: jest. Also verified that the ballmer-peak example still works and works when changed to use a textarea or select, but that if the input is changed to an uncontrolled component with no onChange, that Chrome doesn't list the event handlers bound in the Elements > Event Listeners panel.