keep internal attachments internal so they don't sync over

outgoing sync
replica.attachments = issue.attachments.each {
  attachment ->
 
    issue.comments.each {
      comment ->
        if (comment.body.contains(attachment.filename))
          attachment.internal = comment.internal
    }
}
 
replica.comments = issue.comments.findAll {
  !it.internal
}
replica.attachments = issue.attachments.findAll {
  !it.internal
}