From snapshot 26.3 snapshot 3 to the version where bug 26.3 snapshot 5 was submitted, when there is a water source next to the seat, the player moves toward the water source when standing up, even if it’s a water-containing block (you don’t even need actual water).
Steps to reproduce:
Take out the seat cushion and a few buckets of water
Put down the cushion, dig a hole next to it (diagonal won't work), and pour in some water.
Sit on it
Come down Expected result: The player will stand on the cushion Actual result: The player moves toward the hole
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