Comment 4 for bug 1697954

Some spot-checks of largish consortial databases suggests that there are very few cases where patron records have more than 100 active loans, so if fetching everything performs acceptably for a hundred items out, we may be good to go. However, I've seen a couple cases where a patron record has more than 500 loans, so it might pay to be defensive, count 'em first, then choose whether to fetch everything or revert to a non-client-sorted view.