Axolotl will still be dry on the boat or boat with chest if it's in water when raining

Can confirm.
Boats on land, while raining, do not appear to be affected.

Confirmed.

Axolotl kinda thirsty to get up in a boat while raining environment.

Relates to MC-208624 and MC-208630.

I can't reproduce this in 21w18a.

I am still able to reproduce this issue in 21w18a, however, the axolotl will only be dry if the boat is in water, when it's raining, so I'm requesting for this ticket to be reopened. If the boat is on land, the axolotl will not be "dry". Here are some steps to reproduce this issue:

Steps to Reproduce:

• Summon an axolotl in a boat on land, whilst it's raining.

/weather rain
/summon minecraft:boat ~ ~ ~ {Passengers:[{id:"axolotl"}]}

• Inspect its "Air" NBT value through the use of the following command:

/data get entity @e[type=minecraft:axolotl,limit=1,sort=nearest] Air

→ ✔  Notice how the Air value stays at 6000s, indicating that the axolotl is not "dry".

• Summon an axolotl in a boat that is on water and make sure it's still raining.

/weather rain
/summon minecraft:boat ~ ~ ~ {Passengers:[{id:"axolotl"}]}

• Inspect its "Air" NBT value through the use of the following command:

/data get entity @e[type=minecraft:axolotl,limit=1,sort=nearest] Air

→ ❌  Notice how the Air value decreases, indicating that the axolotl is "dry".

Additionally, I've attached a video to clear any confusion regarding this issue.

Can confirm in 1.18.

Can confirm in 1.18.1.

Can confirm in 1.18.2.

Fixed in 23w31a.