(Super)User has no person

If a superuser without a linked person authenticates in, it breaks while getting activities and notifications.

This is because a superuser can view everything…

changed milestone to %2.0a2

added part::backend prio::1 type::bug labels

assigned to @yuha

created merge request !240 (merged) to address this issue

mentioned in merge request !240 (merged)

mentioned in commit d3e86d66

closed via merge request !240 (merged)