Steps to reproduce the issue

in a back-end view ./administrator/components/com_content/tmpl/articles/default.php create an accordion with the joomla core htmlhelpers, add the following lines before the line starting with <form action=

<?php echo HTMLHelper::_('bootstrap.startAccordion', 'accordion-test'); ?>
<?php echo HTMLHelper::_('bootstrap.addSlide', 'accordion-test', Text::_('TEST'), 'test-collapse', 'test'); ?>
   <h1>TEST-ACCORDION</h1>
<?php echo HTMLHelper::_('bootstrap.endSlide'); ?>
<?php echo HTMLHelper::_('bootstrap.endAccordion'); ?>

When you now go to the view articles, you see the closed accordion.
Click on the accordion to open it.
The accordion opens.

now click on the topbar menu 'User Menu'

The accordion now closes although it should stay open.

The issue here is that the template.js selects all elements with [data-bs-toggle="collapse"]

and the closes these.

This is not correct! it should only close dropdowns (used in the menus) and no other elements.

Expected result

accordion should stay open

Actual result

accordion (and if multiple set on the page, accordions) are closed

System information (as much as possible)

J5.2 (latest)

Additional comments