Hooked up "revert to draft" button on complete step after scheduling

refs a19d5c7df3

- added handling of the `afterTask` return value provided when closing the publish flow modal via the revert-to-draft button

ghost/admin/app/components/editor-labs/publish-management.js

@@ -53,6 +53,13 @@ export default class PublishManagement extends Component {
                 saveTask: this.publishTask,
                 togglePreviewPublish: this.togglePreviewPublish
             });
+
+            const result = await this.publishFlowModal;
+
+            if (result?.afterTask && this[result?.afterTask]) {
+                await timeout(160); // wait for modal animation to finish
+                this[result.afterTask].perform();
+            }
         }
     }