Apparent file traversal bug during dry runs of Scaffolder

Issue

When using Scaffolder in RHDH v1.4 in dry run mode, I get errors related to path traversal. The first error is NotAllowedError: Relative path is not allowed to refer to a directory outside its parent, which I think I'm getting because I'm doing ../../skeletons/github-repository in

    - id: fetch-common
      name: Add common configuration
      action: fetch:template
      input:
        url: ../../skeletons/github-repository
        targetPath: ./
        values:
          gitleaksNotifyUserList: ${{ parameters.owner }}

I'm pretty sure that's allowed because it's done in Red Hat's own example templates: https://github.com/search?q=repo%3Aredhat-developer%2Fred-hat-developer-hub-software-templates%20..%2F..%2F&type=code

Outside of dry run, it gets past these steps.