In January 2014, the migration banner on questions migrated from other sites was changed to link to the revision history of the question on the origin site (the migration stub), and said revision history would be kept visible to all users even after the stub was deleted. This was done to comply with CC licensing requirements, since when a question is migrated, only its latest revision is moved to the new site, and there was no attribution supplied to users who edited the post on the original site.
Prior to that change, the migration banner simply linked to the stub question itself, with the
However, as migration banners are now hidden on posts migrated from other sites more than 60 days ago, the link to this revision history is now gone again. The stub can still be accessed from the revision history, but the revision history item still links to the stub question itself (with the
?noredirect=1 parameter), not the revision history (i.e. what the banner used to link to prior to the change noted above).
While it's still possible to get to the stub's (always publicly visible) revision history, now it requires one to manipulate the URL after clicking the link. Also, the notice one receives upon following the link is (almost always) a 404, which misleadingly implies that the revision history isn't visible, even though it is. This therefore means that the license may possibly be violated since there is the attribution is now obfuscated.
Can this please be fixed? The easiest way to resolve this issue, without modifying the notice logic, is simply to make the revision history item link to the stub's revision history rather than the stub itself.