Merge "Only create user_creds row on initial stack store"

diff --cc heat/engine/parser.py
index 0a21634071fe26ef1502d88b37ce3b70c6633002,a2fe23dfcd7019874e311ed9042ba306eecd04a1..8ee8dc898f652790d78f3565bcb7d7b3cf88b155
--- 1/heat/engine/parser.py
--- 2/heat/engine/parser.py
+++ b/heat/engine/parser.py
@@@ -157,10 -157,9 +157,9 @@@ class Stack(object)
          Store the stack in the database and return its ID
          If self.id is set, we update the existing stack
          '''
-         new_creds = db_api.user_creds_create(self.context)
  
          s = {
 -            'name': self.name,
 +            'name': self._backup_name() if backup else self.name,
              'raw_template_id': self.t.store(self.context),
              'parameters': self.env.user_env_as_dict(),
              'owner_id': self.owner_id,