Returning more accurate value in AuditDetails when a custom message is provided

ee/lib/audit/details.rb

@@ -33,7 +33,7 @@ module Audit
       when :failed_login
         "Failed to login with #{oath_label} authentication"
       when :custom_message
-        target_detail_value
+        detail_value
       else
         text_for_change(target_detail_value)
       end

ee/spec/helpers/audit_events_helper_spec.rb

@@ -39,18 +39,6 @@ describe AuditEventsHelper do
           is_expected.to eq(custom_message)
         end
       end
-
-      context 'when the target_type is not Operations::FeatureFlag' do
-        let(:target_type) { 'User' }
-
-        context 'when custom message contains "_"' do
-          let(:custom_message) { "message_with_spaces" }
-
-          it 'replaces them with spaces' do
-            expect(subject).to eq("message with spaces")
-          end
-        end
-      end
     end
   end