Fix “Delete and Redraft” on a non-quote being treated as a quote post in some cases (#37140)

app/javascript/mastodon/reducers/compose.js

@@ -530,7 +530,7 @@ export const composeReducer = (state = initialState, action) => {
       map.set('sensitive', action.status.get('sensitive'));
       map.set('language', action.status.get('language'));
       map.set('id', null);
-      map.set('quoted_status_id', action.status.getIn(['quote', 'quoted_status']));
+      map.set('quoted_status_id', action.status.getIn(['quote', 'quoted_status'], null));
       // Mastodon-authored posts can be expected to have at most one automatic approval policy
       map.set('quote_policy', action.status.getIn(['quote_approval', 'automatic', 0]) || 'nobody');
 
@@ -567,7 +567,7 @@ export const composeReducer = (state = initialState, action) => {
       map.set('idempotencyKey', uuid());
       map.set('sensitive', action.status.get('sensitive'));
       map.set('language', action.status.get('language'));
-      map.set('quoted_status_id', action.status.getIn(['quote', 'quoted_status']));
+      map.set('quoted_status_id', action.status.getIn(['quote', 'quoted_status'], null));
       // Mastodon-authored posts can be expected to have at most one automatic approval policy
       map.set('quote_policy', action.status.getIn(['quote_approval', 'automatic', 0]) || 'nobody');