Release initial connection

Author: technige

neo4j/v1/direct.py

@@ -62,7 +62,7 @@ def __init__(self, uri, **config):
         self.security_plan = security_plan = SecurityPlan.build(**config)
         self.encrypted = security_plan.encrypted
         pool = DirectConnectionPool(lambda a: connect(a, security_plan.ssl_context, **config), self.address)
-        pool.acquire()
+        pool.release(pool.acquire())
         Driver.__init__(self, pool, **config)
 
     def session(self, access_mode=None, **parameters):