Merge pull request #11028 from marmelab/fix-use-expanded

Fix `useExpanded` does not have a stable `defaultValue`

Author: fzaninotto

packages/ra-core/src/controller/list/useExpanded.tsx

@@ -24,7 +24,7 @@ export const useExpanded = (
 ): [boolean, () => void] => {
     const [expandedIds, setExpandedIds] = useStore<Identifier[]>(
         `${resource}.datagrid.expanded`,
-        []
+        emptyArray
     );
     const expanded = Array.isArray(expandedIds)
         ? // eslint-disable-next-line eqeqeq
@@ -50,6 +50,8 @@ export const useExpanded = (
     return [expanded, toggleExpanded];
 };
 
+const emptyArray: Identifier[] = [];
+
 /**
  * State-like hook for controlling the expanded state of many list items
  * expanded state is true when at least one item from ids is expanded.