Stylesheet code added to form paths?

After enabling this module, I started seeing the conditional HTML being added to form action. Here's some pseudo code:

<form action="domain.com/form_path<!--[if IE]><link rel="stylesheet" type="text/css" href="all-ie-only.css" /> /><![endif]-->

Which obviously causes an issue. This would happen on the admin interface which uses the Adminimal theme. I didn't add the conditional style to the Adminimal info.yml.

I had to manually disable the module because the uninstall forms wouldn't function.