mkt.schema.utils.SET_HOMOLOG_DO_NOT_MERGE

mkt.schema.utils.SET_HOMOLOG_DO_NOT_MERGE = frozenset({frozenset({'BUB1', 'BUB1B'})})

Hand-curated name pairs that group_name_homologs() must never collapse together, overriding the prefix heuristic. BUB1 / BUB1B are distinct genes (BUB1B is BUBR1) whose B suffix is not the receptor R case caught generically.