[whatwg] Elements should be removed from the past names map once it's no longer associated with the form element

[Boris Zbarsky]

On 8/26/13 9:51 PM, Ryosuke Niwa wrote:
> That's good to hear.  So we're definitely in agreement with respect to this new behavior.

I filed https://www.w3.org/Bugs/Public/show_bug.cgi?id=23073

-Boris