message: improve the changset description
diff: '@backstage/plugin-scaffolder-backend': patch
  ---
  -include ref when cloning from GitLab
  +Honor the branch ref in the url when cloning.
  +
  +This fixes a bug in the scaffolder prepare stage where a non-default branch
  +was specified in the scaffolder URL but the default branch was cloned.
  +For example, even though the `other` branch is specified in this example, the
  +`master` branch was actually cloned:
  +
  +```yaml
  +catalog:
  + locations:
  + - type: url
  + target: https://github.com/backstage/backstage/blob/other/plugins/scaffolder-backend/sample-templates/docs-template/template.yaml
  +```
  