I have custom modules with an svg with multiple icons.
When I want to display a certain icon I use <use>.

This worked fine when I created the website with J5.0.1.

Now on J5.1.2 when I edit a module, <use> is stripped from the code.
Unchanged modules still display the svg icon, so the code is correct.

Also in J4.4.6 I can still add icons using <use>.

Somewhere between J5.0.1 and 5.1.2 adding <use> to svgs stopped working.

In the TinyMCE plugin the Use Joomla's text filter is set to YES.
In Global configuration The text filter for Super User is set to No filtering.

Steps to reproduce the issue

Create a new Custom module
Go to Tools > Source code+
Copy/paste the following code into the popup window and hit Save.

<div><svg aria-hidden="true" class="visually-hidden" version="1.1" xmlns="http://www.w3.org/2000/svg"> <path id="star" d="M10,0l2.245,6.91l7.266,-0l-5.878,4.27l2.245,6.91l-5.878,-4.27l-5.878,4.27l2.245,-6.91l-5.878,-4.27l7.266,-0l2.245,-6.91Z"></path></svg></div>
<div><svg width="100%" height="100%" viewBox="0 0 100 20"> <use href="#star"></use> <use href="#star" x="20"></use> <use href="#star" x="40"></use> <use href="#star" x="60"></use> <use href="#star" x="80"></use> </svg> </span></li></ul></div>

Expected result

Display 5 stars (+ original svg)

Actual result

Display only the original svg and all <use>s are stripped.

System information (as much as possible)

Joomla 5.1.2
TinyMCE 6.8.3
PHP 8.3
MySQL 8 / MariaDB 10.x