Problem

When summoning a Vex and modifying its NoAI value to the opposite of its summoned state, it is unaffected.

Steps To Reproduce

With AI to Start

1. Summon a Vex with "/summon vex ~ ~ ~"
2. Modify the data of the Vex "/data modify entity @e[type=minecraft:vex,limit=1] NoAI set value 1b"
3. Observe the lack of change

No AI to Start

1. Summon a Vex with "/summon minecraft:vex ~ ~ ~ {NoAI:1b}"
2. Modify the data of the Vex "/data modify entity @e[type=minecraft:vex,limit=1] NoAI set value 0b"
3. Observe the lack of change