Ragged bundles

This idea comes from a mechanic of written books called "generation", where a book has a generation value of "Original", "Copy of Original", "Copy of Copy", or "Tattered" based off where it was copied from, or in the case of Tattered unused in survival but available to map makers. This generation value also controls whether a book can be copied.

A ragged bundle is a bundle which cannot have items put into it, only taken out of it.
This allows bundles to be used to store items given to a player in an adventure map, without giving them a functional bundle which might interfere with the intended gameplay/balance of the map.

This somewhat ties into my other idea of loottable support for bundles, enabling there use to collate mob drops or as rewards in adventure maps.