attrs-scope-chain-fileref-1

Single {} on FileRef goes to FileRefGroup

§6.2

Input

/img.png {.a}

Output AST

- type: FileRefGroup
  group: image
  children:
    - type: FileRef
      path: /img.png
      query: ""
      fragment: ""
  attributes:
    - key: class
      value:
        - a