Steps to reproduce the issue

Mail template com_users.password_reset

HTML Body:

<p>Hello,</p>
<p>
	A request has been made to reset your {SITENAME} account password. To reset your password, you will need to submit this verification code to verify that the request was legitimate.
</p>
<p>
    The verification code is {TOKEN}
</p>
<p>
	Click <a href="{LINK_HTML}">here</a> and proceed with resetting your password.    
</p>
<p>
    Thank you.
</p>

Expected result

URL in email is correct: https://www.mysite.com/component/users/reset.html?layout=confirm&token=blablabla&Itemid=123

Actual result

URL in email is broken: https://www.mysite.com/https://www.mysite.com/component/users/reset.html?layout=confirm&token=blablabla&Itemid=123

The https://www.mysite.com is dobled in email.

System information (as much as possible)

• Joomla! 5.2.0
• PHP 8.3.13

Additional comments

When I put Mail Template Layout to No, problem not exist. Make me think Mail Template Layout is problem.

I look in MailTemplate. Line 331 $htmlBody = MailHelper::convertRelativeToAbsoluteUrls($htmlBody);. Add var_dump($htmlBody); next to it. I see <a href="https://www.mysite.com/{LINK_HTML}">. But LINK_HTML already have https://www.mysite.com/! This comes the problem, no?

I move $htmlBody = MailHelper::convertRelativeToAbsoluteUrls($htmlBody); after the big if layout and problem not exist.