Reference counting on cbor_tag_item #109

cbor_item_t *cbor_tag_item(const cbor_item_t *item)
Get the tagged item.
Return
incref the tagged item
Parameters
item[borrow]: A tag

This API does not increment the reference count so either the documentation is incorrect or the code is. The result of this is a system crash, primarily due to the change that checks the reference count:
35b2601#diff-b6e6b92852165166e4fca6a6279cb519