Looks like it was no one-off. Weeks before the second issue of 27 by Charles Soule and Renzo Podesta is set to ship, it has already sold out its overprint at distributor level and a second printing approved. Just as the second printing of 27 #1 is set to ship with 27 #2, so the second printing of 27 #2 will now ship with 27 #3.
So if you missed out of the first print of the first issue… yeah, looks like you’re going to miss out on the first print of the second issue too.
Ho ho ho.