fixes #319

app/models/tag.rb

@@ -2,7 +2,7 @@ class Tag < ActiveRecord::Base
   attr_accessible :category
   after_save :update_category_cache
   has_one :wiki_page, :foreign_key => "name", :primary_key => "title"
-  scope :name_matches, lambda {|name| where("name LIKE ? ESCAPE E'\\\\'", name.to_escaped_for_sql_like)}
+  scope :name_matches, lambda {|name| where("name LIKE ? ESCAPE E'\\\\'", name.downcase.to_escaped_for_sql_like)}
   scope :named, lambda {|name| where("name = ?", TagAlias.to_aliased([name]).join(""))}
   search_methods :name_matches