Spatial coverage duplication

[atomrab]

In a PeriodO collection that I am cleaning, there was a typo in the entry of the spatial coverage of one of the items. Specifically, there were two records associated with Argentina, but in one the spatial coverage was "Argentina" and in the other "argentina". This generated two facets in the search filter. When I edited the "argentina" entry to correct it to "Argentina", the case of the second "Argentina" in the search filter changed, but it still appeared separately from the "Argentina" that was originally capitalized.

Existing spatial coverage terms come up in a pull-down list, of course, but I can see fast or inaccurate typists putting in an entire term that's already there, rather than selecting, or putting in a misspelling that prevents the right term from showing up in the populated list ("Fnance"). We want to have a way to correct "Fnance" to "France" without then having both "France" and "France" appear separately in the facet window.