Affects Version/s: Minecraft 1.13.1
Fix Version/s: None
When the player dismounts a boat and stands still on top of it, the hunger bar depletes at a faster pace than normal.
This is most apparent when the player has a high level of exhaustion, such as after sprinting.
Recreating the issue:
This bug can be recreated by achieving a high level of exhaustion (note that exhaustion is represented as twitching/pulsating drumsticks in the hunger bar) through, e.g., jumping and running simultaneously, followed by entering a boat, then dismounting the boat and standing still. Finally, observe the hunger bar.
The bug is only in effect when said boat floats on water.
The bug is still in play even if the player has a low level of exhaustion. It only takes extra time to reach the given, visible effect.