Walking through open piston and incorrect hitbox.
When a piston (sticky or normal) is open you can go through the pipe-like object sticking out when you are near the base. The rest of the pile-like that can't be walked through has the same hitbox as a full block.
I have made this bug report private because this bug can be abused in adventure maps.
Linked Issues
Created Issue:
Walking through open piston and incorrect hitbox.
When a piston (sticky or normal) is open you can go through the pipe-like object sticking out when you are near the base. The rest of the pile-like that can't be walked through has the same hitbox as a full block.
I have made this bug report private because this bug can be abused in adventure maps.
Added Linked Issues:
duplicates
Sorry, I didn't realise someone already reported this.
Duplicate of
MC-3004Please do not mark issues as private, unless your bug report is a security issue containing information that may compromise your server/client.