switch away from handles to refs that must be upgraded once

core/src/attr.rs

@@ -18,7 +18,7 @@ impl<State: HasUi + StateLike<State>, WL: WidgetLike<State, Tag>, Tag>
     ) -> impl WidgetIdFn<State, WL::Widget> {
         |state| {
             let id = self.add(state);
-            A::run(state, id.weak(), input);
+            A::run(state, id, input);
             id
         }
     }