assure that we don't have an empty description when creating a repo

rhodecode/model/repo.py

@@ -192,6 +192,9 b' class RepoModel(BaseModel):'
                 if k == 'repo_group':
                     k = 'group_id'
 
+                if k == 'description':
+                    v = v or repo_name
+
                 setattr(new_repo, k, v)
 
             if fork: