Select youngest user when fetching from ip
Select youngest user when fetching from ip

Since there may appear another valid (non-inactive) user besides the
desired one, picking the one with the highest `user_id` is necessary.

Fix #93

lukasjuhrich/sipa,lukasjuhrich/sipa,MarauderXtreme/sipa,MarauderXtreme/sipa,agdsn/sipa,MarauderXtreme/sipa,lukasjuhrich/sipa,agdsn/sipa,fgrsnau/sipa,agdsn/sipa,fgrsnau/sipa,fgrsnau/sipa,lukasjuhrich/sipa,agdsn/sipa