[1.8.x] Refs #14030 -- Added tests for Value aggregates
[1.8.x] Refs #14030 -- Added tests for Value aggregates

Backport of bd4afef98490198e325654952d38a5735ee7e358 from master

pquentin/django,h4r5h1t/django-hauthy,pquentin/django,pquentin/django,h4r5h1t/django-hauthy,h4r5h1t/django-hauthy,h4r5h1t/django-hauthy