NoAI:1b mobs cannot be ridden in 1.21.5+

With no changelog notice mobs in 1.21.5 with NoAI:1b are no longer rideable

Steps to Reproduce:

1. Summon a rideable mob (e.g., a horse, pig, or camel) with NoAI set to true:

   /summon horse ~ ~ ~ {NoAI:1b,equipment:{saddle:{id:"minecraft:saddle",count:1}}}

2. Attempt to ride the mob (right-click / mount). ‘Use movement keybinds’ (edit)

Expected Result:
You should be able to ride the mob as normal. The mob would stay still (not move on its own), but you could interact and ride it.

Observed Result:
You cannot ride mobs that have NoAI:1b. They are stuck in place. This effects all rideable mobs

Notes:

• This behavior worked as expected in Minecraft 1.21.4 and earlier versions.

• No mention of this change appears in the 1.21.5 changelog.

• It affects all mobs that are normally ridable, including pigs, horses, camels, and striders.-

• Many maps used NoAI to prevent mobs from wandering while still allowing riding. This change breaks builds relying on stationary rideable mobs.
  update: still broken in 25w15a, post updated