From 6e50ef573fc1cf53f68c6920009e038192da0fdb Mon Sep 17 00:00:00 2001
From: tobiascapin <tobia@scapin.eu>
Date: Thu, 11 Jan 2024 10:27:00 +0100
Subject: [PATCH] Ignore move for disabled options

---
 src/jquery.bootstrap-duallistbox.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/jquery.bootstrap-duallistbox.js b/src/jquery.bootstrap-duallistbox.js
index 93e0423..9859e16 100644
--- a/src/jquery.bootstrap-duallistbox.js
+++ b/src/jquery.bootstrap-duallistbox.js
@@ -254,7 +254,7 @@
 
     dualListbox.elements.select1.find('option:selected').each(function(index, item) {
       var $item = $(item);
-      if (!$item.data('filtered1')) {
+      if (!$item.data('filtered1') && !$item.prop("disabled")) {
         changeSelectionState(dualListbox, $item.data('original-index'), true);
       }
     });
@@ -301,7 +301,7 @@
 
     dualListbox.element.find('option').each(function(index, item) {
       var $item = $(item);
-      if (!$item.data('filtered1')) {
+      if (!$item.data('filtered1') && !$item.prop("disabled")) {
         $item.prop('selected', true);
         $item.attr('data-sortindex', dualListbox.sortIndex);
         dualListbox.sortIndex++;