Fix aggregatejsonview so location can be null
Fix aggregatejsonview so location can be null
eHealthAfrica/nutsurv,eHealthAfrica/nutsurv,johanneswilm/eha-nutsurv-django,johanneswilm/eha-nutsurv-django,johanneswilm/eha-nutsurv-django,eHealthAfrica/nutsurv