From 7a5eaccb5e6ee1a867a3c2f30e9a44400e6c341c Mon Sep 17 00:00:00 2001
From: Vladimir Kharlampidi <nolimits4web@gmail.com>
Date: Wed, 25 Oct 2023 17:15:53 +0300
Subject: [PATCH] fix(core): prevent observer updates on loop fix

fixes #7135
---
 src/core/loop/loopFix.mjs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/core/loop/loopFix.mjs b/src/core/loop/loopFix.mjs
index 0100c5d05..76e8c708f 100644
--- a/src/core/loop/loopFix.mjs
+++ b/src/core/loop/loopFix.mjs
@@ -10,6 +10,7 @@ export default function loopFix({
   byMousewheel,
 } = {}) {
   const swiper = this;
+
   if (!swiper.params.loop) return;
   swiper.emit('beforeLoopFix');
   const { slides, allowSlidePrev, allowSlideNext, slidesEl, params } = swiper;
@@ -114,6 +115,10 @@ export default function loopFix({
       }
     }
   }
+  swiper.__preventObserver__ = true;
+  requestAnimationFrame(() => {
+    swiper.__preventObserver__ = false;
+  });
   if (isPrev) {
     prependSlidesIndexes.forEach((index) => {
       slides[index].swiperLoopMoveDOM = true;