FIX: Clean up after adding events. Fixes random test failures.

spec/components/discourse_plugin_spec.rb

@@ -14,6 +14,10 @@ describe DiscoursePlugin do
   let(:registry) { mock }
   let(:plugin) { TestPlugin.new(registry) }
 
+  after do
+    DiscourseEvent.clear
+  end
+
   describe ".mixins" do
     it "finds its mixins" do
       expect(TestPlugin.mixins).to eq([TestPlugin::TestMixin])

spec/components/plugin/instance_spec.rb

@@ -55,6 +55,10 @@ describe Plugin::Instance do
         @serializer = TroutSerializer.new(@trout)
       end
 
+      after do
+        DiscourseEvent.clear
+      end
+
       it "checks enabled/disabled functionality for extensions" do
 
         # with an enabled plugin