ginader/HTML5-placeholder-polyfill — pull request #43 by IagoSRL (2013-03-14 08:52:00+00:00)
Title: Bugfix: placeholder element must save a reference to the input element in data-input, not to itself.

I suppose is a mistake: placeholder element was saving a reference to itself as data-input instead of a reference to the input element.
Thats affect only to the click handler on placeholder element that auto-focus its related input.