Fix single table inheritance deprecation warning bug

lib/dfe/analytics.rb

@@ -98,10 +98,11 @@ def self.initialize!
 
       entities_for_analytics.each do |entity|
         models_for_entity(entity).each do |m|
-          if m.include?(DfE::Analytics::Entities) && !@shown_deprecation_warning
+          if m.include?(DfE::Analytics::Entities)
             Rails.logger.info("DEPRECATION WARNING: DfE::Analytics::Entities was manually included in a model (#{m.name}), but it's included automatically since v1.4. You're running v#{DfE::Analytics::VERSION}. To silence this warning, remove the include from model definitions in app/models.")
           else
             m.include(DfE::Analytics::Entities)
+            break
           end
         end
       end

spec/dfe/analytics/single_table_inheritance_spec.rb

@@ -16,12 +16,17 @@
 
     # autogenerate a compliant blocklist
     allow(DfE::Analytics).to receive(:blocklist).and_return(DfE::Analytics::Fields.generate_blocklist)
-    DfE::Analytics.initialize!
   end
 
   it 'correctly includes callbacks for each member of the STI party' do
+    DfE::Analytics.initialize!
     expect(Parent).to include(DfE::Analytics::Entities)
     expect(Child).to include(DfE::Analytics::Entities)
     expect(Sibling).to include(DfE::Analytics::Entities)
   end
+
+  it 'does not log a deprecation warning' do
+    expect(Rails.logger).not_to receive(:info).with(/DEPRECATION WARNING/)
+    DfE::Analytics.initialize!
+  end
 end