Can the parsers avoid building full URLs

Trying to parse the outputSource of a workflow:

```cwl
outputs:
- id: out
type: File
outputSource: hello/out
```

But the output source gets resolved to:

```
'file:///Users/franklinmichael/source/janis-core/ingestion/workflow/hello_v1_0_0.cwl#hello/out/hello/out'
```

I don't know how to work that back to `hello/out` programmatically as I don't really understand how it's getting that `#hello/out/hello/out` section. Is it possible to disable this URI building?