Fixed #18244 -- Documented that formset.has_changed is a 1.4 addition.
|@@ -152,6 +152,8 @@ As we can see, ``formset.errors`` is a list whose entries correspond to the|
|forms in the formset. Validation was performed for each of the two forms, and|
|the expected error message appears for the second item.|
|+.. versionadded:: 1.4|
|We can also check if form data differs from the initial data (i.e. the form was|
|sent without any data)::|