Summary:

When you jump on Farmland until it turns into Dirt, you are pushed off the block.

Steps to reproduce:

1- Get the Farmland block from the Creative Mode menu.

2- Place this block on the ground.

3- Jump on him until he becomes Dirt.

Observed results:

You will notice that the Player will be pushed off the block when he transforms into Dirt.

Expected results:

The player should not be pushed from the block after this same block turns into Dirt.
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I recommend you place water next to the blocks (just like in the videos below) for best results.