UI controls appear in bug descriptions with some markdown

If this is intentional for some reason, feel free to close this, however I suspect this is just an accidental oversight (probably due to use of some third party markdown parser), the behavior is very, very weird.

Gitlab markdown in issue descriptions (and maybe also comments ?) do more than formatting, but allow creation of control elements.

Here is an example of the problem, but to avoid linking external resources which might change, the issue is reproducible with the following markdown:

  * [ ]  foo
  * [ ]  bar
  * [x]  baz

The result of the above is that check buttons appear in the gitlab web UI, which the user can click, modifying it's state.

Even more weird; is that interacting with UI controls causes the bug to be edited (without ever hitting the edit/commit buttons), i.e. clicking a control causes gitlab to update the bug (will say "edited less than one minute ago").

I'm not sure what happens if you dont have permission to edit the bug and you press those controls, either.