need to doncase before checking for prefix and suffix

hyrax/app/helpers/complex_helper.rb

@@ -21,13 +21,13 @@ module ComplexHelper
     title.sub!(/\A[^a-zA-Z0-9]*/, '')
     title.sub!(/[^a-zA-Z0-9]*\z/, '')
 
+    title.downcase
 
     # Check for xn-- prefix and sthree- prefix
     title.gsub!(/\Asthree-/i, '')
 
     # Check for -s3alias suffix and --ol-s3 suffix
     title.sub!(/-s3alias\z/i, '')
-    
-    title.downcase
+
   end
 end
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