From f02a3d8392728b0b09736c1ccbfecc16242e6852 Mon Sep 17 00:00:00 2001
From: Pieter Vander Vennet <pietervdvn@posteo.net>
Date: Fri, 6 Sep 2024 22:50:56 +0200
Subject: [PATCH] Fix crash when trying to change user settings

---
 src/Models/ThemeConfig/TagRenderingConfig.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Models/ThemeConfig/TagRenderingConfig.ts b/src/Models/ThemeConfig/TagRenderingConfig.ts
index 3408cbcd93..e2a4c1538d 100644
--- a/src/Models/ThemeConfig/TagRenderingConfig.ts
+++ b/src/Models/ThemeConfig/TagRenderingConfig.ts
@@ -926,6 +926,9 @@ export default class TagRenderingConfig {
      * Might give undefined if setting to unknown is not possible
      */
     public removeToSetUnknown(partOfLayer: LayerConfig, currentTags: Record<string, string>): string[] | undefined {
+        if(!partOfLayer?.source || !currentTags){
+            return
+        }
         const toDelete = new Set<string>()
         if (this.freeform) {
             toDelete.add(this.freeform.key)