Raw latex in yaml headers

[trymnf]

I have an issue when using raw Latex in the document's yaml header:

---
title: Title
date: \today{}
---

Here is a file in the same directory:

!include file.md 

Yields the following pdf:

This is not a huge problem on its own, but header-includes also doesn't work, which is a bit more of an issue.

Any thoughts?

[DCsunset]

After inspecting it for several days, I found that the assignment of metadata was problematic.
It has been fixed in v0.6.3. See 69b60e1