Sitting in a boat placed underwater gives the player limitless oxygen

This description does not quite follow the standard grammar. Jason, or moderators would you please change it to something like "Sitting in a boat placed underwater gives the player limitless oxygen"?

Confirmed for 18w32a

Confirmed for 1.13.1, although you'll be teleported out the boat shortly after entering the boat.

This issue relates to MC-96198.

I've found a reliable way to reproduce this and have saved the structure that I've used to reproduce to 

.

How to reproduce

1. Use a structure block to load the structure contained in 

1. /setblock ~ ~ ~ structure_block{mode:"LOAD",name:"mc-127322:mc-127322",showboundingbox:1}

2. Place any type of boat on the lowest water level

3. Ride into the water current
   → ❌ Observe that the player doesn't lose oxygen

Thanks. I've put it into the description of this ticket.

Confirmed for 1.13.2-pre2.

Unable to recreate

• boat could not be placed even with datapack.

• boat created with /summon couldn't be entered.