anchor.diff:  delete_user_db(User) ->
       UserDb = user_db_name(User),
       try
  -        fabric:delete_db(UserDb, [?ADMIN_CTX])
  +        case fabric:delete_db(UserDb, [?ADMIN_CTX]) of
  +        ok -> ok;
  +        accepted -> ok
  +        end
       catch error:database_does_not_exist ->
           ok
       end,
  
positive.code:     {false, _} ->
          ok;
      {true, SecProps1} ->
          fabric:set_security(UserDb, {SecProps1}, [?ADMIN_CTX])
      end.
  
  user_db_name(User) ->
  
negative.code: ensure_user_db(User) ->
      UserDb = user_db_name(User),
      try
          {ok, _DbInfo} = fabric:get_db_info(UserDb)
      catch error:database_does_not_exist ->
          case fabric:create_db(UserDb, [?ADMIN_CTX]) of
          ok -> ok;
          accepted -> ok
          end
      end,
      UserDb.
  
  