[IMP] qweb: compiler: support t-key on node and component without t-foreach

src/blockdom/toggler.ts

@@ -43,7 +43,9 @@ class VToggler {
     }
   }
 
-  beforeRemove() {}
+  beforeRemove() {
+    this.child.beforeRemove();
+  }
 
   remove() {
     this.child.remove();