Sneak bug - Sneaking and jumping into water prevents the player from jumping or swimming upwards

^{Update by [Mojang] Mega_Spud (Jay Wells):}
Summary:
If you sneak before jumping into water, you are stuck in sneak mode, and can no longer jump or stop sneaking.

Steps to Reproduce:

1. Using touch controls, stand near the edge of some water
2. Double tap the d-pad to start sneaking
3. Jump into the water
4. Try and jump or swim upwards

Observed Results:
You are stuck sneaking, and cannot jump or swim.

Expected Results:
Jumping into the water should disengage sneaking, or at least enable you to jump/swim.

Screenshots/Videos attached: Yes

Notes:

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Original Description:
In survival you can't go up if sneak and jump to the water. You can't go up, just move left, right. If you want go up you must use stairs or slabs. But not in the creative. In creative you can fly. Please fix it