FYI @WCMinor :)

I'm testing your code, if I pass the value of ref as a hardcoded config, like in

ref     = "main"

the validation works fine. However if I pass it as a variable, as in

ref     = var.git_branch

It does not work, is throws:

A Deployment must have either `ref` or `files` specified

Of course the variable git_branch has value in my template. This is a behaviour that I found days ago, that's why I originally implemented it in the apply state (hacky).

@WCMinor That's a good catch! I think it's because I'm checking Value rather than Null. I'll update that! :)