fix

packages/svelte/src/internal/client/dom/blocks/async.js

@@ -1,7 +1,9 @@
-/** @import { TemplateNode, Value } from '#client' */
+/** @import { Effect, TemplateNode, Value } from '#client' */
 
 import { async_derived } from '../../reactivity/deriveds.js';
-import { capture, suspend } from './boundary.js';
+import { active_fork } from '../../reactivity/forks.js';
+import { active_effect, schedule_effect } from '../../runtime.js';
+import { capture } from './boundary.js';
 
 /**
  * @param {TemplateNode} node
@@ -11,12 +13,16 @@ import { capture, suspend } from './boundary.js';
 export function async(node, expressions, fn) {
 	// TODO handle hydration
 
+	var fork = active_fork;
+	var effect = /** @type {Effect} */ (active_effect);
 	var restore = capture();
-	var unsuspend = suspend();
 
 	Promise.all(expressions.map((fn) => async_derived(fn))).then((result) => {
 		restore();
 		fn(node, ...result);
-		unsuspend();
+
+		fork?.run(() => {
+			schedule_effect(effect);
+		});
 	});
 }

packages/svelte/src/internal/client/dom/blocks/if.js

@@ -11,7 +11,6 @@ import {
 import { block, branch, pause_effect, resume_effect } from '../../reactivity/effects.js';
 import { HYDRATION_START_ELSE, UNINITIALIZED } from '../../../../constants.js';
 import { create_text, should_defer_append } from '../operations.js';
-import { active_effect } from '../../runtime.js';
 import { active_fork } from '../../reactivity/forks.js';
 
 /**
@@ -51,10 +50,10 @@ export function if_block(node, fn, elseif = false) {
 	/** @type {Effect | null} */
 	var pending_effect = null;
 
-	var boundary = /** @type {Effect} */ (active_effect).b;
-
 	function commit() {
 		if (offscreen_fragment !== null) {
+			// remove the anchor
+			/** @type {Text} */ (offscreen_fragment.lastChild).remove();
 			anchor.before(offscreen_fragment);
 			offscreen_fragment = null;
 		}
@@ -130,7 +129,6 @@ export function if_block(node, fn, elseif = false) {
 			}
 
 			active_fork?.add_callback(commit);
-			target.remove();
 		} else {
 			commit();
 		}

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

@@ -12,8 +12,7 @@ import {
 	set_is_destroying_effect,
 	set_signal_status,
 	untrack,
-	untracking,
-	flushSync
+	untracking
 } from '../runtime.js';
 import {
 	DIRTY,
@@ -40,7 +39,7 @@ import { DEV } from 'esm-env';
 import { define_property } from '../../shared/utils.js';
 import { get_next_sibling } from '../dom/operations.js';
 import { async_derived, derived } from './deriveds.js';
-import { capture, suspend } from '../dom/blocks/boundary.js';
+import { capture } from '../dom/blocks/boundary.js';
 import { component_context, dev_current_component_function } from '../context.js';
 import { active_fork } from './forks.js';
 

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

@@ -29,7 +29,7 @@ export class Fork {
 	/** @type {Set<() => void>} */
 	#callbacks = new Set();
 
-	#pending = 0;
+	pending = 0;
 
 	apply() {
 		if (forks.size === 1) {
@@ -108,15 +108,15 @@ export class Fork {
 	}
 
 	increment() {
-		this.#pending += 1;
+		this.pending += 1;
 	}
 
 	decrement() {
-		this.#pending -= 1;
+		this.pending -= 1;
 	}
 
 	settled() {
-		return this.#pending === 0;
+		return this.pending === 0;
 	}
 
 	/** @param {() => void} fn */

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

@@ -776,7 +776,7 @@ export function queue_flush() {
 			// TODO this doesn't seem quite right — may run into
 			// interesting cases where there are multiple roots.
 			// it'll do for now though
-			if (active_fork?.settled()) {
+			if (active_fork?.pending === 0) {
 				active_fork.remove();
 			}
 
@@ -858,7 +858,7 @@ function process_effects(root, fork) {
 		}
 	}
 
-	if (async_effects.length === 0 && (fork === null || fork.settled())) {
+	if (async_effects.length === 0 && (fork === null || fork.pending === 0)) {
 		fork?.commit();
 		flush_queued_effects(render_effects);
 		flush_queued_effects(effects);
@@ -898,7 +898,7 @@ export function flushSync(fn) {
 	// TODO this doesn't seem quite right — may run into
 	// interesting cases where there are multiple roots.
 	// it'll do for now though
-	if (active_fork?.settled()) {
+	if (active_fork?.pending === 0) {
 		active_fork.remove();
 	}