VietTH: Hotfix issue search with regex '~'

app/models/concerns/solr.rb

@@ -39,8 +39,8 @@ module Solr extend ActiveSupport::Concern
           escape  = solr_options_data[:escape].present?
           escape  = solr_options_data[:escape].present?
         end
         end
 
 
-        value = Regexp.escape(value) if escape.present?
-        str << "#{item.first}:(#{value})" << ' '
+        value = %Q("#{value}") if escape.present?
+        str << "#{item.first}:#{value}" << ' '
       end
       end
 
 
       results = rsolr.paginate(
       results = rsolr.paginate(