958                 return False

   958                 return False

   959             except ValueError:

   959             except ValueError:

   960                 return True

   960                 return True

   961         except error.RevlogError:

   961         except error.RevlogError:

   962             return False

   962             return False

   963 

   966 

   964     shortest = node

   967     shortest = node

   965     startlength = max(6, minlength)

   968     startlength = max(6, minlength)

   966     length = startlength

   969     length = startlength

   967     while True:

   970     while True: