add spec to ensure saftey, but this wont work.. Also changelog

Changelog.md

@@ -29,6 +29,7 @@ Enhancements
 * Times in profile output are now bold instead of failure_color.
   (Matthew Boedicker)
 * Add --no-fail-fast command line option. (Gonzalo Rodríguez-Baltanás Díaz)
+* Clear shared example registry using accessor. (thepoho, Jon Rowe)
 
 ### 2.14.4 / 2013-07-21
 [full changelog](http://github.com/rspec/rspec-core/compare/v2.14.3...v2.14.4)

spec/rspec/core/shared_example_group_spec.rb

@@ -11,6 +11,14 @@ module RSpec::Core
       expect(Module.private_methods & seg_methods).to eq([])
     end
 
+    module SharedExampleGroup
+      describe Registry do
+        it 'can safely be reset' do
+          expect { Registry.clear }.to_not raise_error
+        end
+      end
+    end
+
     %w[share_examples_for shared_examples_for shared_examples shared_context].each do |shared_method_name|
       describe shared_method_name do
         it "is exposed to the global namespace" do