fix(useCoState): requested changes

.changeset/empty-points-crash.md

@@ -0,0 +1,5 @@
+---
+"jazz-react-core": patch
+---
+
+Fix useCoState stale data

packages/jazz-react-core/src/hooks.ts

@@ -135,7 +135,14 @@ export function useCoState<V extends CoValue, D>(
     () => observable.getCurrentValue(),
   );
 
-  return value;
+  return React.useMemo(() => {
+    if (!id) {
+      observable.reset();
+      return undefined;
+    }
+
+    return value;
+  }, [id, value]);
 }
 
 export function createUseAccountHooks<Acc extends Account>() {