Using an ender pearl to teleport into a one-block-high area with water in it will cause the player's head to become stuck in a block
One would expect to be instantly put into swimming mode upon teleportation, given the player would be able to fit in such a space with no ill effects, however this is not the case.
Created Issue:
Using an ender pearl to teleport into a one-block-high area with water in it will cause the player's head to become stuck in a block
One would expect to be instantly put into swimming mode upon teleportation, however this is not the case.
Changed Description:
One would expect to be instantly put into swimming mode upon teleportation, given the player would be able to fit in such a space with no ill effects, however this is not the case.
Added Affects Versions: 1.13-pre1
Added Affects Versions: 1.13-pre2
Added Affects Versions: 1.13-pre3
Added Affects Versions: 1.13-pre5
Added Affects Versions: 1.13-pre6
Added Affects Versions: 1.13-pre7
Added Affects Versions: 1.13-pre8
Added Affects Versions: 1.13-pre9
Added Affects Versions: 1.13-pre10
Added Affects Versions: 1.13
Added Affects Versions: 18w30a
Added Affects Versions: 18w30b
Added Affects Versions: 18w31a
Added Affects Versions: 18w32a
Added Affects Versions: 18w33a
Added Affects Versions: 1.13.1-pre1
Added Affects Versions: 1.13.1-pre2
Added Affects Versions: 1.13.1
Added Affects Versions: 1.13.2-pre1
Added Affects Versions: 1.13.2-pre2
Added Affects Versions: 18w43b
Added Mojang Priority: Normal
Added Affects Versions: 19w12b
Added Affects Versions: 19w13a
Added Affects Versions: 19w13b
Likely resulted from the fix to MC-129863/MC-131116/MC-130572/MC-132482.
This can happen in many different cases:
- Placing a lily pad within yourself (
MC-667) - Closing a door on yourself
- Closing a fence gate on yourself
- Having a piston push a block into your feet
- Solid plants growing within a player (e.g. bamboo, trees)
- Intersecting a falling block after it lands
- Having a piston push a block into your head (likely intended - especially if the pushed block comes from above, and makes for easy entrances to one-block-high passageways)
- Using an ender pearl to enter a one block high area (likely intended - stops you from suffocating, and sounds very useful)
- Closing a trapdoor on yourself (likely intended - makes for easy entrances to one-block-high passageways, assuming the trapdoor is waist height)
It would be best if all intersections with the top half of the player still caused them to start crawling, but all intersections with the bottom half would not.


Can confirm for 1.13-pre4.
Fixed in 19w14a
Fix was likely due to other fixes from this snapshot to do with the crawling animation.