Odd behavior with `bl_type` filtering

[gaurav]

I can run the following query on Babel Sapbert and get back reasonable-looking results:

{
  "text": "asthma",
  "model_name": "sapbert",
  "count": 10000,
  "args": {"bl_type": "Gene"}
}

However, if I change bl_type to Disease, it returns zero results:

{
  "text": "asthma",
  "model_name": "sapbert",
  "count": 10000,
  "args": {"bl_type": "Disease"}
}

However, if I run the query with a blank bl_type, I get back good search results, including lots of biolink:Disease results.

{
  "text": "asthma",
  "model_name": "sapbert",
  "count": 10000,
  "args": {"bl_type": ""}
}

Does anybody know what's going on here? Am I calling the model incorrectly?

[gaurav]

FWIW the middle query works if I reduce the count to 1000:

{
  "text": "asthma",
  "model_name": "sapbert",
  "count": 1000,
  "args": {"bl_type": "Disease"}
}