WIP

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

@@ -266,6 +266,8 @@ export class Batch {
 	}
 
 	#process() {
+		// console.group('process', this.id);
+
 		current_batch = this;
 
 		if (flush_count++ > 1000) {
@@ -382,6 +384,8 @@ export class Batch {
 		if (!batches.has(this)) {
 			this.#commit();
 		}
+
+		// console.groupEnd();
 	}
 
 	/**

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

@@ -158,6 +158,10 @@ export function increment_write_version() {
 export function is_dirty(reaction) {
 	var flags = reaction.f;
 
+	if ((flags & REACTION_IS_UPDATING) !== 0) {
+		return false;
+	}
+
 	if ((flags & REACTION_RAN) === 0) {
 		return true;
 	}