This issue also occurs with hydrated farmland and farmland with crops planted on them.

1. Till dirt to create farmland.
2. Jump on the farmland to trample it.
3. The player will fall into the new dirt block and be pushed out onto other blocks, if possible. If not, the player may fall straight down into the block and suffocate. If there is enough air below, the player could continue falling all the way through the block.

This newfound bug poses a threat to people trampling farms at high elevation (where I originally encountered this bug and died...) or farms that have empty blocks below them. It could also be a catalyst for ill intent, e.g. x-ray glitches or innocent-looking traps on large servers.

Video Demonstration: https://drive.google.com/file/d/17mR81vZuM9cvEPvrRVVJo_OO5sbG0rtm/view?usp=share_link