fix scope context

packages/core/src/arena.rs

@@ -110,11 +110,13 @@ impl VirtualDom {
         // Drop all the hooks once the children are dropped
         // this means we'll drop hooks bottom-up
         scope.hooks.get_mut().clear();
-        let context = scope.context();
+        {
+            let context = scope.context();
 
-        // Drop all the futures once the hooks are dropped
-        for task_id in context.spawned_tasks.borrow_mut().drain() {
-            context.tasks.remove(task_id);
+            // Drop all the futures once the hooks are dropped
+            for task_id in context.spawned_tasks.borrow_mut().drain() {
+                context.tasks.remove(task_id);
+            }
         }
 
         self.scopes.remove(id.0);