mailto link not working properly

h44z

Using WebApp 5.2.0.0-1+168.1 on Kopano Core 8.7.24 as the default mail application gives some strange results when a mailto: link is clicked (tested only in Chrome):

Link: mailto:Displayname%20%3cmailaddr@test.de%3e

Example html:

<!DOCTYPE html>
<html lang="">
  <head>
    <meta charset="utf-8">
    <title></title>
  </head>
  <body>
    <header></header>
    <main>
    <a title="Send mail" href="mailto:Displayname%20%3cmailaddr@test.de%3e" target="_blank" rel="noopener noreferrer nofollow">Send Email</a>
    </main>
    <footer></footer>
  </body>
</html>

Clicking on the link opens Kopano WebApp as expected, but the mail address is not parsed correctly:

The display name (before <mail address>) does not get split.

Expected outcome should be:
Displayname = Displayname
E-Mail Address = mailaddr@test.de

Is there a solution to this?