When boats crash, they drop 2 sticks and 3 wooden planks rather than a boat

Put the summary of the bug you're having here

What I expected to happen was...:
When I crashed a boat, it would drop a boat just as it has.

What actually happened was...:
It dropped 2 sticks and 3 wooden planks

Steps to Reproduce:
1. Crash a boat into something
2. ...Look at what it drops
3. ...