> in a HTML comment breaks the comment [duplicate]

Question

When a > is encountered in a HTML comment the comment breaks.
Take the following markdown source:

<!--
Here is an example of this working fine.

And a second line to show that's not the problem.
-->

<!--
This isn't visible like you would expect.

> Everything from here is visible.
-->

Which renders as:

---

Everything from here is visible. -->

---

Here is an example of the above part of the question in the preview screen.

There are two comments, one completely hidden the other partially visible.

This means I can't hide some HTML used to get a render. This means if I, or others, need to update the render we either don't have the HTML available or I have to clutter the post.