While looking for loot in the ocean, I exited my boat while moving and lost the ability to attack, and use my shield.

I created the world in 1.15.2
Played the world in 1.15.2,.1.6 Pre-Release 1, 1.6 Pre-Release 2

What I expected to happen:**
     Exit the boat allowing me to kill the drowned and defend myself against tridents
What Happened:
     I exited the boat and slapped around until I realized what happened
What fixed it for me:
     A quick Game relog

How to Recreate it:
     Step 1: Obtain a Boat.
     Step 2: Place the boat on water or land.
     Step 3: Enter said boat and move forward/around continuously .
     Step 4: Exit the boat while still moving forward/around.

This does happen after everytime I leave the boat, but enough that it is a annoyance.

Notes: I used a backup after I loaded the world in 1.15.2.
>Created World in 1.15.2
>>Played for a while
>Loaded 1.16 Pre-Release 1 (Made a backup beforehand)
>>Played for a little bit
>Loaded 1.16 Pre-Release 2 (Made a Backup beforehand)
>>Played a little bit
>Re-loaded 1.15.2 (Made a backup beforehand)
>>World was different and my base was missing. Promptly left
>>>>Deleted world save.
>Used Backup save.
>>Re-loaded game back in 1.16 Pre-Release 2
>>>Played until I encountered the bug
>>>>Reported said Bug

Visual proof of it (https://www.youtube.com/watch?v=mJMZSg6Agr4&feature=youtu.be)

What I tested:
>Can I mine blocks?: True/yes
>Can I place blocks?: False/no
>Can I attack?: False/no
>Can I defend: False/no
>Can I open chest/furnaces/Brewing stands/Blast Furnaces/Smokers etc?: False/no
>Can I Ride Horses,Boats: False/no

Thanks for the help and spending the time to read it.