spatial_geo values from search index

[Conal-Tuohy]

The spatial_geo field should be populated by values drawn from an object whose production took place at a place which was crm:P168_place_is_defined_by a spatial definition, whose rdf:value should be spatial coordinates. But the Solr field appears to be empty. The spatial_geo field is defined in the Solr schema but not documented on the Getting Started page.

[staplegun]

spatial_geo is experimental - Solr can do spatial search, but we haven't investigated it depth yet