Team control throwin. Foul purposes only

[Zoochy]

Originally Posted by Raymond

It's just such a poorly written rule. You are correct in pointing out that a throw-in ends when it touches anybody inbounds. And if team control exists for the purposes of the throw-in only, they have not clearly defined what the status of the ball is once it touches or deflects off an offensive player.

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So my question is... what happens when a throw-in is touched (as mentioned by Raymond) but before anybody secures control of the ball, the official sounds an inadvertent whistle?
Is Team A in control of the ball? What would have the ruling been before 2011?