Enrichment data missing for aws.textDetection

Given the plugins:

• nuxeo-ai-core
• nuxeo-ai-aws

Given the config:

nuxeo.enrichment.aws.images=true
nuxeo.enrichment.save.facets=true

I upload an image that contains text. When the enrichment is complete there is no enrichment data available in `enrichment:items` for the `aws.textDetection` model. E.g. I end up with:

"model": "aws.textDetection",
"suggestions": []

The enrichment data is available in the BLOB fields (e.g. item.normalized.data, item.raw.data) so I know that the AWS call is working correctly. But this BLOB data is not convenient to work with in Automation.