For this query
http://localhost:8888/api/bioentity/gene/HGNC:11593/homologs/?homology_type=O&fetch_objects=false
The JSON returned is this and clearly the taxon for zfin is missing :
{'id': '11d97a53-bf91-477e-89e2-340f94e8264e', 'subject': {'id': 'NCBIGene:347853', 'label': 'TBX10', 'taxon': {'id': 'NCBITaxon:9606', 'label': 'Homo sapiens'}}, 'object': {'id': 'ZFIN:ZDB-GENE-121228-1', 'label': 'tbx10'}, 'negated': False, 'relation': {'id': 'RO:HOM0000017', 'label': 'in orthology relationship with'}, 'publications': [{'id': 'PMID:22915831'}], 'provided_by': ['https://data.monarchinitiative.org/ttl/zfin.ttl'], 'evidence': ['MONARCH:ba21515e9db29392', 'PMID:22915831', 'ECO:0000031', 'NCBIGene:347853', 'ZFIN:ZDB-GENE-121228-1'], 'evidence_graph': {'nodes': [{'id': 'ECO:0000031', 'lbl': 'protein BLAST evidence used in manual assertion', 'meta': {}}, {'id': 'MONARCH:ba21515e9db29392', 'lbl': None, 'meta': {}}, {'id': 'ZFIN:ZDB-GENE-121228-1', 'lbl': 'tbx10', 'meta': {}}, {'id': 'PMID:22915831', 'lbl': 'Ahn et al; Evolution of the Tbx6/16 Subfamily Genes in Vertebrates: Insights from Zebrafish; Mol. Biol. Evol.; 2012; 29(12); 3959-3983', 'meta': {}}, {'id': 'NCBIGene:347853', 'lbl': 'TBX10', 'meta': {}}], 'edges': [{'sub': 'MONARCH:ba21515e9db29392', 'obj': 'PMID:22915831', 'pred': 'dc:source', 'meta': {'isDefinedBy': ['https://data.monarchinitiative.org/ttl/zfin.ttl'], 'lbl': ['Source'], 'equivalentOriginalNodeTarget': ['http://zfin.org/ZDB-PUB-120830-8']}}, {'sub': 'ZFIN:ZDB-GENE-121228-1', 'obj': 'NCBIGene:347853', 'pred': 'RO:HOM0000017', 'meta': {'owlType': ['Annotation'], 'isDefinedBy': ['https://data.monarchinitiative.org/ttl/zfin.ttl'], 'lbl': ['in orthology relationship with']}}, {'sub': 'MONARCH:ba21515e9db29392', 'obj': 'NCBIGene:347853', 'pred': 'OBAN:association_has_object', 'meta': {'isDefinedBy': ['https://data.monarchinitiative.org/ttl/zfin.ttl'], 'lbl': ['association has object']}}, {'sub': 'MONARCH:ba21515e9db29392', 'obj': 'PMID:22915831', 'pred': 'dc:source', 'meta': {'isDefinedBy': ['https://data.monarchinitiative.org/ttl/zfin.ttl'], 'lbl': ['Source']}}, {'sub': 'MONARCH:ba21515e9db29392', 'obj': 'ZFIN:ZDB-GENE-121228-1', 'pred': 'OBAN:association_has_subject', 'meta': {'isDefinedBy': ['https://data.monarchinitiative.org/ttl/zfin.ttl'], 'lbl': ['association has subject']}}, {'sub': 'MONARCH:ba21515e9db29392', 'obj': 'ECO:0000031', 'pred': 'RO:0002558', 'meta': {'isDefinedBy': ['https://data.monarchinitiative.org/ttl/zfin.ttl'], 'lbl': ['has evidence']}}], 'meta': {'query': 'monarch:cypher/gene-homology.yaml'}}}