message: fix type in known clusters
diff: @@ -5,8 +5,7 @@ const ClusteredSNPsFlag = 'clustered SNPs'
  const TooManyMixedSites = 'Too many non-ACGT characters'
  const MissingData = 'missing data'
  -// TODO: verify duplicated numbers in this Set. Probably a typo.
  -const knownClusters = new Set([28881, 28881, 28883])
  +const knownClusters = new Set([28881, 28882, 28883])
  function findSNPClusters(mutations: Record<string, Base>) {
  const windowSize = 100 // window along the genome to look for a cluster
  