Since I was not sure if this is a bug or if I am missing something I am first filing this under the "question" category.

I am recording the ObjectId in a string and want to later use it to retrieve the document:
 
 
auto result = m_collection.insert_one(doc_val.view());
m_id = result->inserted_id().get_oid().value.to_string();
However, the to_string method is returning a decimal representation, even though the API documentation says it should return a hexadecimal representation.