Going through my close vote list to see how many of the questions I voted to close were actually closed, I see that one of the questions that I voted to close was migrated:
Being intrigued, I click the link and sure enough, it takes me to the question now on SO.
Since I want to see how this migration is shown on the original question posted to Apple.SE, I add
?noredirect=1 to the link, and sure enough I end up at the original question.
However where I usually see the 'on hold' or 'closed' message, I see 'migrated' as I expected to see, but with my name shown as one of those that migrated the question.
How? I didn't vote to migrate, I voted to close, albeit with one of Apple.SE's predefined off-topic reasons suggesting that it be posted to Stack Overflow, but I thought this was just one of the reasons written by a ♦ moderator with some custom text, and didn't have any technical consequences on my close vote…?