github.com/project-slug in catalog-info.yaml shown "undefined:undefined"

I tried to run scaffolder-templates/clean-architecture-app, but catalog-info.yaml showned "undefined:undefined". Wonder what am I missing?

The code in catalog-info.yaml has
```
annotations:
github.com/project-slug: ${{values.destination.owner + "/" + values.destination.repo}}

```
but I don't see values.destination defined any where. What did I missed?

Inspect scaffolder-templates/clean-architecture-app and its catalog-info.yaml, then trace how values.destination is defined or rendered. Reproduce the generated catalog-info.yaml and verify that the project slug no longer appears as "undefined:undefined".

Written by the indexing model from the issue text.