From 2b1b80ae238bf8c6b25da2832c4ddd05cf1dae3e Mon Sep 17 00:00:00 2001
From: Yohan Boniface <yohanboniface@free.fr>
Date: Sat, 22 Jul 2023 09:04:29 +0200
Subject: [PATCH] Do not modify tooltipAnchor inplace, as it's shared by all
 markers

fix #1223
---
 umap/static/umap/js/umap.features.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/umap/static/umap/js/umap.features.js b/umap/static/umap/js/umap.features.js
index c6903950..92144d2d 100644
--- a/umap/static/umap/js/umap.features.js
+++ b/umap/static/umap/js/umap.features.js
@@ -581,7 +581,7 @@ L.U.Marker = L.Marker.extend({
   },
 
   _getTooltipAnchor: function () {
-    const anchor = this.options.icon.options.tooltipAnchor,
+    const anchor = this.options.icon.options.tooltipAnchor.clone(),
       direction = this.getOption('labelDirection')
     if (direction === 'left') {
       anchor.x *= -1