message: fix: don't ignore the results of array concat
diff: @@ -65,8 +65,8 @@ export class AminoacidChangesGroup {
  this.codonAaRange.end = change.codon + 1
  this.codonNucRange.end = change.contextNucRange.end
  this.changes.push(change)
  - this.nucSubstitutions.concat(change.nucSubstitutions)
  - this.nucDeletions.concat(change.nucDeletions)
  + this.nucSubstitutions = this.nucSubstitutions.concat(change.nucSubstitutions)
  + this.nucDeletions = this.nucDeletions.concat(change.nucDeletions)
  this.refContext = mergeContext(this.refContext, change.refContext)
  this.queryContext = mergeContext(this.queryContext, change.queryContext)
  this.contextNucRange.end = change.contextNucRange.end
  