What is the usage of a cbor_item_t with zero reference count?

[khabinov]

Hi, first of all, thanks for this great library.

It looks that both cbor_decref and cbor_move decrement number of references, however, when refcount reaches zero, cbor_decref will destroy an object. It seems that it is possible to make refcount equal to zero by using cbor_move, so I was wondering how a cbor_item_t with zero reference count could be used apart from moving it's content into cbor map or cbor array?

Thanks!