BatchSpawnerBase: Move connect_to_job before DB commit and debug logg…

…ing.

With this, the first database commit will already contain the forwarded port
if connect_to_job is used, and the log will show the correct port number.

batchspawner/batchspawner.py

@@ -585,16 +585,16 @@ async def start(self):
             if hasattr(self, "mock_port"):
                 self.port = self.mock_port
 
+        if self.connect_to_job_cmd:
+            await self.connect_to_job()
+
         self.db.commit()
         self.log.info(
             "Notebook server job {0} started at {1}:{2}".format(
                 self.job_id, self.ip, self.port
             )
         )
 
-        if self.connect_to_job_cmd:
-            await self.connect_to_job()
-
         return self.ip, self.port
 
     async def stop(self, now=False):