Describe the bug
Freecam starts flying upwards on its own if enabled along with jesus (solid) while being pushed by water. It keeps going up (and you can't move it back down, you can only stop it temporarily or look around). This persists as long as you're being pushed by water.
Enable jesus solid
Position your player so that water is pushing you constantly
Go into free camera
You should be able to control freecam behavior, instead its moving on its own
Okay actually turns out that this issue only affects the 1.12.2 version because I rewrote the majority of Jesus in the 1.13.2 update and didn't bother to transfer the compatibility changes that went with it.