projectblacklight/blacklight — pull request #993 by bbotella (2014-10-22 15:45:22+00:00)
Title: Fix Solr error when faceting with a negative integer value.

I found a bug when trying to facet a query with a negative integer. Solr returned an error because the negative symbol ("-") is a special character in Lucene query syntax. This pull should scape that character and fix the error.