Adjusted a comment to reflect some app refactor changes.

django/db/models/fields/related.py

@@ -70,9 +70,9 @@ def add_lazy_relation(cls, field, relation, operation):
             model_name = relation._meta.object_name
 
     # Try to look up the related model, and if it's already loaded resolve the
-    # string right away. If get_model returns None, it means that the related
-    # model isn't loaded yet, so we need to pend the relation until the class
-    # is prepared.
+    # string right away. If get_registered_model raises a LookupError, it means
+    # that the related model isn't loaded yet, so we need to pend the relation
+    # until the class is prepared.
     try:
         model = cls._meta.apps.get_registered_model(app_label, model_name)
     except LookupError: