fix(Toast): failed to reopen when using get-container (#7032)

src/toast/index.js

@@ -43,12 +43,18 @@ function parseOptions(message) {
   return { message };
 }
 
+function isInDocument(element) {
+  return document.body.contains(element);
+}
+
 function createInstance() {
   /* istanbul ignore if */
   if (isServer) {
     return {};
   }
 
+  queue = queue.filter((item) => isInDocument(item.$el));
+
   if (!queue.length || multiple) {
     const toast = new (Vue.extend(VueToast))({
       el: document.createElement('div'),