[python] investigate data-flow issues for django-DefectDojo

Data-flow queries are never finishing for DefectDojo, even though the atom file has a good set of purl tags. The app.atom for this project can be downloaded from Hugging Face.

```text
Atom Summary
┏━━━━━━━━━━━━━━━━━━┳━━━━━━━━┓
┃ Node Type ┃ Count ┃
┡━━━━━━━━━━━━━━━━━━╇━━━━━━━━┩
│ Files │ 1239 │
│ Methods │ 26610 │
│ Annotations │ 0 │
│ Imports │ 6907 │
│ Literals │ 129140 │
│ Config Files │ 83 │
│ Validation tags │ 528 │
│ Unique packages │ 51 │
│ Framework tags │ 93725 │
│ Framework input │ 16877 │
│ Framework output │ 0 │
│ Crypto tags │ 102 │
│ Overlays │ 5 │
└──────────────────┴────────┘

chennai>
```

https://huggingface.co/datasets/AppThreat/ukaina/tree/main/python/django-DefectDojo

Example chennai query.

```scala
atom.tag.name("pkg.*").identifier.df(atom.tag.name("framework").identifier).t
```