Areas of operation are sometimes duplicated on organization detail pages

[hancush]

Reference link not available.

I'm looking into this. Possibly related to #697?

[hancush]

This is occurring because we use the first and last cited dates to sort areas of operation, and a particular area can have multiple first/last cited dates, causing areas having more than one of either date to appear multiple times on the page.

I have a patch to reimplement the custom sort, such that the duplicates are removed, however we don't have a good way to control which start/end dates are displayed, which makes the sort appear nonsensical for AOOs having more than one of either date.

@tlongers How wedded are we to sorting AOO by start/end date? Would falling back to sorting by area name be acceptable, or is it worth investing the time (at least another few hours, I reckon) make date sort and display work correctly?

NVM, I refactored sort to prevent dupes, then I took a walk and figured out a straightforward way to fix date display, as well!