Unify verbosity behaviour of GradientNormController

nifty4/minimization/gradient_norm_controller.py

@@ -121,7 +121,7 @@ class GradientNormController(IterationController):
 
         # Are we done?
         if self._iteration_limit is not None:
-            if self._itcount >= self._iteration_limit:
+            if self._itcount >= self._iteration_limit and self._name is not None:
                 dobj.mprint(
                     "Warning:Iteration limit reached. Assuming convergence")
                 return self.CONVERGED