Cardboard box destroys constructor

[Talidorn]

Current version: 1.8.4.1

If you use a cardboard box on a shell constructor the sound of breaking glass happens and the shell constructor is just gone.

I'm guessing this is due to the shell constructor being 2 blocks tall.

If there is a way to move the shell constructor with a clone in it please let me know.

Otherwise perhaps a note on the shell constructor saying this will break if you attempt to move with a cardboard box.

Thanks.