fix: flush batches whenever an async value resolves

Author: Rich-Harris

.changeset/metal-parents-train.md

@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: flush batches whenever an async value resolves

packages/svelte/src/internal/client/reactivity/batch.js

@@ -375,21 +375,17 @@ export class Batch {
 decrement() {
 this.#pending -= 1;
 
-if (this.#pending === 0) {
-for (const e of this.#dirty_effects) {
-set_signal_status(e, DIRTY);
-schedule_effect(e);
-}
-
-for (const e of this.#maybe_dirty_effects) {
-set_signal_status(e, MAYBE_DIRTY);
-schedule_effect(e);
-}
+for (const e of this.#dirty_effects) {
+set_signal_status(e, DIRTY);
+schedule_effect(e);
+}
 
-this.flush();
-} else {
-this.deactivate();
+for (const e of this.#maybe_dirty_effects) {
+set_signal_status(e, MAYBE_DIRTY);
+schedule_effect(e);
 }
+
+this.flush();
 }
 
 /** @param {() => void} fn */