Merge remote-tracking branch 'upstream/master' into python-registry-v2

storage/cloud.py

@@ -257,6 +257,8 @@ class _CloudStorage(BaseStorageV2):
     return k.etag[1:-1][:7]
 
   def copy_to(self, destination, path):
+    self._initialize_cloud_conn()
+
     # First try to copy directly via boto, but only if the storages are the
     # same type, with the same access information.
     if (self.__class__ == destination.__class__ and
@@ -268,6 +270,7 @@ class _CloudStorage(BaseStorageV2):
       source_path = self._init_path(path)
       source_key = self._key_class(self._cloud_bucket, source_path)
 
+      destination._initialize_cloud_conn()
       dest_path = destination._init_path(path)
       source_key.copy(destination._cloud_bucket, dest_path)
       return