Required space for placing a boat is too small

The bug

The required space when placing a boat is too small.

This allows the collision box of the boat to intersect with blocks.
At 18w31a will make the boat fall into the void.

Video:
https://www.youtube.com/watch?v=MlRPQVz-y9Y

How to reproduce

1. Put a boat in your hand

2. Place a block on the ground

3. Look at the ground right in front of the placed block

4. Hold right click while slowly moving the cursor away from the block

Code analysis

Based on 1.12.2 decompiled using MCP 9.40

The method net.minecraft.item.ItemBoat.onItemRightClick(World, EntityPlayer, EnumHand) decreases the collision box size when it tests for no collisions:

if (!worldIn.getCollisionBoxes(entityboat, entityboat.getEntityBoundingBox().grow(-0.1D)).isEmpty())
{
    return new ActionResult<ItemStack>(EnumActionResult.FAIL, itemstack);
}