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http://lists.w3.org/Archives/Public/www-style/2011Sep/0524.html
Was resolved at TPAC: <http://lists.w3.org/Archives/Public/www-style/2011Nov/0709.html>
While we have agreed on the effect of setting display to none, I do not recall we ever explicitly discussed what happens for animations when display goes from none to a non-none value. For animations, I assume this starts the animations specified for the element.
Yes, I think it does.
Fixed at the end of '2. Animations'