Clean out the store if configure fails

lib/core/src/client/preview/config_api.js

@@ -46,6 +46,10 @@ export default class ConfigApi {
           // If we are accessing the site, but the error is not fixed yet.
           // There we can render the error.
           this._renderError(error);
+
+          // Clear out the store as chances as only some of the stories will have
+          // made it in before the error was thrown
+          this._storyStore.clean();
         }
       }
     };