Aggregation doesnt work with Models, ordered by Meta subclass

[eloktev]

Hello,
Using aggregation methods with models, that have set 'ordering' in Meta subclass fails:

class M1 (models.Model)
    date = models.DateField()
    smth = models.IntegerField()    

    class Meta:
        ordeing = 'smth'

count_by_day_qs = M1.objects.values('date').annotate(c=models.Count('id')).values('date', 'c')

#Executes following query:
SELECT "m1"."date", COUNT("m1"."id") AS "c" FROM "m1" GROUP BY "m1"."date", "m1"."smth"

[Simon Charette]

This is documented as a caveat of performing aggregation against a model with a defined Meta.ordering

​https://docs.djangoproject.com/en/3.1/topics/db/aggregation/#interaction-with-default-ordering-or-order-by

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