Well spotted, Reinhard. I had missed that. The stanza you post is indeed in most of the Scottish versions and I hadn't made the connection because they only have the 2nd line in common. But having said that the Irish stanza (and Dylan's) is obviously related. The Dublin version is somewhat garbled and almost certainly is a corruption of the Scottish.

Vol 6 of Greig-Duncan actually gives 21 versions albeit many just the tune or single verse.

The stanza only occurs in Scottish versions and is on none of the broadsides or in any of the English or Newfoundland versions.

I have another Irish version but I'm struggling to find it at the moment.