From f3163cd81fee69ac99dc89ed84f1c8fc0180bb91 Mon Sep 17 00:00:00 2001
From: Artur Arseniev <artur.catch@hotmail.it>
Date: Sun, 6 Feb 2022 11:06:54 +0100
Subject: [PATCH] Update sorter

---
 src/utils/Sorter.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/utils/Sorter.js b/src/utils/Sorter.js
index 024e01816..3313ca3c2 100644
--- a/src/utils/Sorter.js
+++ b/src/utils/Sorter.js
@@ -1068,12 +1068,12 @@ export default Backbone.View.extend({
       const isTextable = this.isTextableActive(srcModel, trgModel);
 
       if (!dropContent) {
-        const srcIndex = srcModel.index();
+        const srcIndex = srcModel.collection.indexOf(srcModel);
         const sameCollection = targetCollection === srcModel.collection;
         const sameIndex = srcIndex === index || srcIndex === index - 1;
         const canRemove = !sameCollection || !sameIndex || isTextable;
 
-        if (canRemove && srcModel.collection) {
+        if (canRemove) {
           modelToDrop = srcModel.collection.remove(srcModel, { temporary: true });
         }
       } else {