From f8931106e8e8f1a57bb28b93e90d01579d8d6335 Mon Sep 17 00:00:00 2001
From: David Matejka <matej21@matej21.cz>
Date: Fri, 7 Jun 2024 11:41:12 +0200
Subject: [PATCH] fix(binding): nothing to persist handling

---
 packages/binding/src/core/DataBinding.ts       | 2 +-
 packages/binding/src/core/MutationGenerator.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/binding/src/core/DataBinding.ts b/packages/binding/src/core/DataBinding.ts
index 49e851c17..fde499617 100644
--- a/packages/binding/src/core/DataBinding.ts
+++ b/packages/binding/src/core/DataBinding.ts
@@ -132,7 +132,7 @@ export class DataBinding<Node> {
 			const generator = new MutationGenerator(this.treeStore, this.queryBuilder)
 			const mutationResult = generator.getPersistMutation()
 
-			if (mutationResult === undefined) {
+			if (mutationResult.operations.length === 0) {
 				await this.processEmptyPersistMutation(onPersistSuccess)
 				return {
 					type: 'nothingToPersist',
diff --git a/packages/binding/src/core/MutationGenerator.ts b/packages/binding/src/core/MutationGenerator.ts
index 3df7c921e..cae82376e 100644
--- a/packages/binding/src/core/MutationGenerator.ts
+++ b/packages/binding/src/core/MutationGenerator.ts
@@ -41,7 +41,7 @@ export class MutationGenerator {
 	) {
 	}
 
-	public getPersistMutation(): PersistMutationResult | undefined {
+	public getPersistMutation(): PersistMutationResult {
 		const mutations: Record<string, ContentMutation<any>> = {}
 		const operations: SubMutationOperation[] = []
 		const processedPlaceholdersByEntity: ProcessedPlaceholdersByEntity = new Map()