NoAI Shulkers still teleport away when in Water

{NoAI:1b}

shulkers still teleport away from water source blocks

How to reproduce:
Spawn a Shulker, set water where the shulker is.

An

{Invulnerable:1b}

shulker will not have these problems, sure. But Endermen for example don't teleport away without being Invulnerable, which is why I think this is not working as intended.

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