Unable to insert IPv6 default route #5

 ...: from mmdb_writer import MMDBWriter
  ...: from netaddr import IPSet, IPNetwork
  ...:
  ...:
  ...: writer = MMDBWriter( ip_version=6, ipv4_compatible=True)
  ...: writer.insert_network( IPSet(IPNetwork("0.0.0.0/0")), { "autonomous_system_number": 123, "autonomous_system_organization": "test"},)
  ...: writer.insert_network( IPSet(IPNetwork("::/0")), { "autonomous_system_number": 123, "autonomous_system_organization": "test"},)
  ...:
  ...:
  ...:
---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
Cell In[2], line 9
     7 writer = MMDBWriter( ip_version=6, ipv4_compatible=True)
     8 writer.insert_network( IPSet(IPNetwork("0.0.0.0/0")), { "autonomous_system_number": 123, "autonomous_system_organization": "test"},)
----> 9 writer.insert_network( IPSet(IPNetwork("::/0")), { "autonomous_system_number": 123, "autonomous_system_organization": "test"},)

File ~/.local/lib/python3.12/site-packages/mmdb_writer.py:446, in MMDBWriter.insert_network(self, network, content)
   444         # Insert supernet information on each inverse bit of the current subnet
   445         current_node[1 - next_bit] = supernet_leaf
--> 446 current_node[bits[-1]] = leaf

IndexError: list index out of range