FIX: Correct spec execution error.

spec/requests/answer_controller_spec.rb

@@ -53,29 +53,27 @@ describe DiscourseSolved::AnswerController do
     context "with plugin modifier" do
      it "allows plugins to bypass rate limiting" do
        sign_in(user)
-
+       # Store the block in a variable so we can reference it for unregistration
-        # Register a modifier that disables rate limiting
+       block = ->(_, _) { false }
-        plugin_instance = DiscoursePluginRegistry.new
+       # Register modifier with proper parameters - plugin instance (self) and name
        DiscoursePluginRegistry.register_modifier(
-          plugin_instance,
+         self,
-          :solved_answers_controller_run_rate_limiter
+         :solved_answers_controller_run_rate_limiter,
-        ) do |_, _|
+         &block
-          false
+       )
-        end
-
-        # Multiple requests should succeed without rate limiting
        post "/solution/accept.json", params: { id: solution_post.id }
        expect(response.status).to eq(200)
-
        post "/solution/accept.json", params: { id: solution_post.id }
        expect(response.status).to eq(200)
-
+       # Unregister with the same plugin instance and block
-        # Clean up
+       DiscoursePluginRegistry.unregister_modifier(
-        DiscoursePluginRegistry.unregister_modifier(:solved_answers_controller_run_rate_limiter)
+         self, # plugin_instance parameter
+         :solved_answers_controller_run_rate_limiter, # name parameter
+         &block # same block used for registration
+       )
      end
    end
   end
-
   describe "#unaccept" do
     before do
       # Setup an accepted solution