Allow Solr sort block to work on collections and override collection sorts and Solr base sorts.
User would like to be able to sort collections by a number of different Solr fields.
Enable "Allow Solr sort block to override collection sort" and set display generation to "Solr" at http://site.com/admin/islandora/solution_pack_config/basic_collection
Enable Solr sort block and add fields to it
View a collection and alter the order of the collection via the Solr sort block
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