deriveds

packages/svelte/src/internal/client/runtime.js

@@ -1280,7 +1280,12 @@ export function derived(init) {
 		create_computation_signal(flags | CLEAN, UNINITIALIZED, current_block)
 	);
 	signal.i = init;
-	signal.x = current_component_context;
+
+	if (current_component_context) {
+		signal.x = current_component_context;
+		current_component_context.d.push(signal);
+	}
+
 	signal.e = default_equals;
 	if (current_consumer !== null) {
 		push_reference(current_consumer, signal);

packages/svelte/src/main/main-client.js

@@ -200,11 +200,7 @@ export function afterUpdate(fn) {
  * @param {import('../internal/client/types.js').ComponentContext} context
  */
 function init_update_callbacks(context) {
-	const callbacks = (context.u = {
+	const callbacks = (context.u = { a: [], b: [], m: [] });
-		a: [],
-		b: [],
-		m: []
-	});
 
 	if (is_ssr) return callbacks; // TODO this shouldn't be necessary but is, because of the tests