Disabled IPv6 in an IPv4 database test.
Disabled IPv6 in an IPv4 database test.

I don't know what the intended behavior of the C library is. The
current and past behaviors are accidental.

maxmind/MaxMind-DB-Reader-python,maxmind/MaxMind-DB-Reader-python,maxmind/MaxMind-DB-Reader-python,kikinteractive/MaxMind-DB-Reader-python,kikinteractive/MaxMind-DB-Reader-python