NodeNorm ES fails to return some identifiers when drug_chemical_conflate is turned on

[gaurav]

Something is weird with drug_chemical_conflate: when I run this query on NodeNorm Redis, I get 146 CURIEs:

• https://nodenorm.ci.transltr.io/get_normalized_nodes?curie=UMLS:C0106127&curie=CHEMBL.COMPOUND:CHEMBL221542&curie=PUBCHEM.COMPOUND:222284&drug_chemical_conflate=true

However, NodeNorm ES only returns 32 CURIEs:

• https://nodenorm-es.ci.transltr.io/get_normalized_nodes?curie=UMLS:C0106127&curie=CHEMBL.COMPOUND:CHEMBL221542&curie=PUBCHEM.COMPOUND:222284&drug_chemical_conflate=true

With drug_chemical_conflate turned off, both services return 17 identifiers each:

• https://nodenorm.ci.transltr.io/get_normalized_nodes?curie=UMLS:C0106127&curie=CHEMBL.COMPOUND:CHEMBL221542&curie=PUBCHEM.COMPOUND:222284&drug_chemical_conflate=false
• https://nodenorm-es.ci.transltr.io/get_normalized_nodes?curie=UMLS:C0106127&curie=CHEMBL.COMPOUND:CHEMBL221542&curie=PUBCHEM.COMPOUND:222284&drug_chemical_conflate=false