Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: fbacall

test/controllers/search_controller_test.rb

@@ -68,9 +68,7 @@ def with(field, value = nil)
       def method_missing(*args); self; end
     end
 
-    search = dummy_search.new
-    Sunspot.stub(:search, -> (_, &block) { search.instance_eval(&block) }) do
-      # When not in a space, with spaces disabled, space constraint should be unset (show everything)
+    Sunspot.stub(:search, ->(_, &block) { search.instance_eval(&block); MockSearch.new([]) }) do
       with_settings(solr_enabled: true, feature: { spaces: false }) do
         get :index, params: { q: 'banana' }
         assert_response :success