mixins.py: Avoid sending empty update data to issue.save (#389)

csoriano1618 · Gauvain Pocentek · commit 0c3a6cb88947 · 2017-12-16T07:57:45.000+01:00
diff --git a/gitlab/mixins.py b/gitlab/mixins.py
@@ -303,6 +303,9 @@ def save(self, **kwargs):
             GitlabUpdateError: If the server cannot perform the request
         """
         updated_data = self._get_updated_data()
+        # Nothing to update. Server fails if sent an empty dict.
+        if not updated_data:
+            return
 
         # call the manager
         obj_id = self.get_id()
