Fixed Zoom-tube exit glitch on Twisted Terminal Zone

(If this hasn't been reported yet, why hasn't it been report yet)
When exiting a Zoom-tube while holding a CTF flag, getting hit by an enemy or thrown ring while near or touching a varitable "Ceiling" or just exiting the Zoom-tube will make the flag stick upside-down to the "Ceiling" until retrieved.

I'm guessing this most likely has been reported, because it's a very common and considerably exploitable bug if you're on the ground, but nothing came up in search, and I looked and saw no topics with similar problems, so I posted it.

This will most likely happen with any object you happen to be holding, just that the CTF flag is the most noticeable because it's not symmetrical.

This bug has now been fixed, but I think there is a core issue... All objects that can collide with the floor (it would look like the ceiling) when in reverse gravity and aren't bouncing objects potentially have this problem (like gargoyles?).