Ensure assert_hostname is set correctly on our pool

        We already take care of a normal poolmanager via init_poolmanager

        But we still need to take care of when there is a proxy poolmanager

def get_connection(self, *args, **kwargs):
        """
        Ensure assert_hostname is set correctly on our pool

        We already take care of a normal poolmanager via init_poolmanager

        But we still need to take care of when there is a proxy poolmanager
        """
        conn = super(SSLHTTPAdapter, self).get_connection(*args, **kwargs)
        if conn.assert_hostname != self.assert_hostname:
            conn.assert_hostname = self.assert_hostname
        return conn