cases where unknown alleles have a name or synonym in common, which should be merged - CHECK FAILURE:  expected 0 but got 6
allele_name	gene_uniquename	duplicate	type	canto_session
  ben1	SPBC26H8.07c	ben1	name	5c1c72c4c8850e21
  ben1-	SPBC26H8.07c	ben1	synonym	652ccd500039fcac
  ben1	SPBC26H8.07c	ben1-	synonym	5c1c72c4c8850e21
  ben1-	SPBC26H8.07c	ben1-	name	652ccd500039fcac
  cdr2-i1	SPAC57A10.02	cdr2i1	synonym	8fe26054c4dd9003
  cdr2i1	SPAC57A10.02	cdr2i1	name	8fe26054c4dd9003