free5GC's UDR nudr-dr DELETE amf-subscriptions panics on missing subsId when UE state exists (nil pointer dereference)

Summary free5GC's UDR nudr-dr DELETE /subscription-data/ueId/servingPlmnId/ee-subscriptions/subsId/amf-subscriptions handler contains a nil-pointer dereference reachable from a single authenticated request, after one preparatory authenticated EE-subscription create. The handler checks , ok =...