sunspot/sunspot — pull request #104 by climbingrose (2011-10-11 06:53:21+00:00)
Title: Support multi-select in query facets

Currently Sunspot throws exception when it encounters multi-select option (:exclude) in query facet. However, according to Solr documentation, multi-select is supported for all types of facets:

http://wiki.apache.org/solr/SimpleFacetParameters

I thought it would be useful for this feature to be enabled for facet query. Since I have limited experience with Sunspot codebase, I'd love to have someone someone here looking at the code.