[BUGFIX] Use correct select element on changing owner / group

When multiple select elements are visible, the value
of the correct element is now used when changing
the owner / group of a page in the permissions module.

This is a partial backport of #93301, only containing
the bugfix.

Resolves: #93319
Releases: 10.4
Change-Id: If136dd155d5a55acb9e711a19281a1424a75643f
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/67466
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>

Build/Sources/TypeScript/beuser/Resources/Public/TypeScript/Permissions.ts

@@ -104,15 +104,16 @@ class Permissions {
    */
   public changeOwner($element: JQuery): void {
     let page = $element.data('page');
+    const $container = $('#o_' + page);
 
     (new AjaxRequest(this.ajaxUrl)).post({
       action: 'change_owner',
       page: page,
       ownerUid: $element.data('owner'),
-      newOwnerUid: $('#new_page_owner').val(),
+      newOwnerUid: $container.find('select[name="new_page_owner"]').val(),
     }).then(async (response: AjaxResponse): Promise<void> => {
       // Replace content
-      $('#o_' + page).replaceWith(await response.resolve());
+      $container.replaceWith(await response.resolve());
     });
   }
 
@@ -171,15 +172,16 @@ class Permissions {
    */
   public changeGroup($element: JQuery): void {
     let page = $element.data('page');
+    const $container = $('#g_' + page);
 
     (new AjaxRequest(this.ajaxUrl)).post({
       action: 'change_group',
       page: page,
       groupUid: $element.data('groupId'),
-      newGroupUid: $('#new_page_group').val(),
+      newGroupUid: $container.find('select[name="new_page_group"]').val(),
     }).then(async (response: AjaxResponse): Promise<void> => {
       // Replace content
-      $('#g_' + page).replaceWith(await response.resolve());
+      $container.replaceWith(await response.resolve());
     });
   }