Parsing template with {- " " -}} should error

[jsha]

Steps to reproduce:

Parse template with:

<img {- " " -}}
  src="http://example.com/gif.png"

Expected: error

Actual: outputs the {- " " -}}

(Note: {- " " -}} is a typo for {{- " " -}}, which I'm using to break up an HTML tag's attributes across multiple lines while keeping exactly one space between attributes)

[Keats]

That's a valid template though? There are no reasons it should error. I haven't checked in Django but Jinja2 does output the same thing as Tera.