blach/PSPushPopPressView — comment on commit 4e9a4727389cc223f4a58d7fd9abd2a69bc272a3
File: PSPushPopPressView.m line 283
By blach:

It fixed an issue for me when you tap on the view very fast.

If the animation isn't finished (finished == NO), it shouldn't be re-attached to the window. I commented it out because I really think it shouldn't be there but wasn't sure why this call is there.