[WhightKnight]

Here is a fix/update.
What the fix does:
If you run zombie plague (or any other mod/plugin modifying gravity), and someone uses parachute NORMALLY their gravity given by their zombie class (or w/e) gets taken away. With this new fix, if you normally get 200 gravity, jump, land, jump again, you still keep the 200 gravity.

Thanks to Emp` for the fix.