Pull request #47: Pull request #44: Never use an empty alias

Merge in ISGAPPSEC/cyperf-api-wrapper from fix-empty-alias-release to release/7.0

* commit '544e0aeeccd50f5ac53ad887742567fb87d70357':
  Pull request #44: Never use an empty alias

Author: tsimionescu

cyperf/dynamic_model_meta.py

@@ -381,7 +381,7 @@ def update(cls, self):
                     del d[key]
                 else:
                     field = self.base_model.__fields__[key]
-                    field_name = field.alias if 'alias' in dir(field) else key
+                    field_name = field.alias if 'alias' in dir(field) and field.alias else key
                     if field_name != key:
                         del d[key]
                     d[field_name] = getattr(self.base_model, key)