After leaving the bed, the player can spawn inside of scaffolding

If you have a flower pot ontop of a structure block south-west of a bed facing east, when you leave the bed after sleeping to skip day and you should be inside the structure block.

What I expected to happen:

Should be standing on the block next to the bed and the structure block (with flower pot).

What actually happened:

Standing inside the structure block and flower pot.

Notes:

Yes I know you can stand inside a structure block normally, but you shouldn't be able to stand inside a flower pot. Just pointing out that you can get inside a flower pot. No I have not tested it with other blocks ontop of the structure block and haven't tested it with other bed directions.