PersonDetails: speed up by prefetching & selecting related
PersonDetails: speed up by prefetching & selecting related

This limits number of queries by a lot.

vahtras/amy,pbanaszkiewicz/amy,swcarpentry/amy,pbanaszkiewicz/amy,swcarpentry/amy,vahtras/amy,swcarpentry/amy,vahtras/amy,pbanaszkiewicz/amy