[MC-134915] The player walks, jumps and falls really fast in Superflat or after changing dimension

When I changed dimension from Overworld to Nether, I noticed the player gets really fast.

It doesn't get fixed if you leave back to Overworld, but it does if you save and quit.

It also happens when you make a Superflat or a Buffet world.

Linked issues

Duplicate of MC-134833.

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However, this issue is a Duplicate of MC-134833.

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