Motor bikes not falling down when water level drops

[ArranTuna]

Describe the bug
If I drop some motor bike in water and set water level lower than bike is, bike still being in that level, and because I set water level lower than that bike, it stays in air, doesn't get down in lower level water etc.

To reproduce
Just do /cv nrg-500 and then do /run setWaterLevel(-100)
Touching the vehicle will cause it to fall.

Tested with Infernus, Dodo, and Squalo - it falls as expected when the water level is decreased.

Also tested with faggio, it seems to apply to all bikes.

Expected behaviour
Bike should fall down from the air when water level change.

Screenshots
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MTA Client:

• Version: v1.4-release-6918
• Running in Wine? no

MTA Server:

• Version v1.4-release-6918
• OS: unstated

Additional context
Add any other context about the problem here

From https://bugs.mtasa.com/view.php?id=4735