fixed duplicated items in slider, featured and latest products

Gemfile

@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 
-gem 'spree', github: 'spree/spree', :branch => 'master'
+gem 'spree', github: 'spree/spree', :branch => '2-3-stable'
 # Provides basic authentication functionality for testing parts of your engine
-gem 'spree_auth_devise', github: "spree/spree_auth_devise", :branch => 'master'
+gem 'spree_auth_devise', github: "spree/spree_auth_devise", :branch => '2-3-stable'
 
 gemspec

app/controllers/spree/home_controller_decorator.rb

@@ -1,14 +1,18 @@
 Spree::HomeController.class_eval do
 
   def index
+  	uniq_item = "DISTINCT (spree_products.id), spree_products.*, spree_products_taxons.position"
     slider = Spree::Taxon.where(:name => 'Slider').first
     @slider_products = slider.products.active if slider
+    @slider_products = @slider_products.select(uniq_item) if @slider_products
 
     featured = Spree::Taxon.where(:name => 'Featured').first
     @featured_products = featured.products.active if featured
+    @featured_products = @featured_products.select(uniq_item) if @featured_products
 
     latest = Spree::Taxon.where(:name => 'Latest').first
     @latest_products = latest.products.active if latest
+    @latest_products = @latest_products.select(uniq_item) if @latest_products
   end
 
 end

spree_fancy.gemspec

@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
   s.require_path = 'lib'
   s.requirements << 'none'
 
-  s.add_dependency 'spree_core', '~> 2.3.0.beta'
+  s.add_dependency 'spree_core', '~> 2.3.0'
   s.add_dependency 'compass-rails'
   s.add_dependency 'jquery-ui-rails'
   s.add_dependency 'deface', '~> 1.0.0rc3'