Reverting the change done to manager.py. The check will have to

Madhu94 · Madhu94 · commit fb47c2048dfc · 2017-08-05T22:36:58.000+05:30
be handled as part of nbformat.
diff --git a/notebook/services/contents/manager.py b/notebook/services/contents/manager.py
@@ -440,13 +440,8 @@ def check_and_sign(self, nb, path=''):
         path : string
             The notebook's path (for logging)
         """
-        # Warning: The check_cells method removes the 
-        # "trusted"" key from the cells' metadata 
         if self.notary.check_cells(nb):
-            # We're checking the signature *after* the
-            # trusted keys have been removed
-            if not self.notary.check_signature(nb):
-                self.notary.sign(nb)
+            self.notary.sign(nb)
         else:
             self.log.warning("Notebook %s is not trusted", path)
 
