(In reply to comment #0)

Sorry if this is a dupe

No problem. :)

• This bug has been marked as a duplicate of bug 11402 ***

(In reply to comment #1)

(In reply to comment #0)

Sorry if this is a dupe

No problem. :)

• This bug has been marked as a duplicate of bug 11402 ***

If it's the large number of "image" versions, probably not a dupe since image versions and page history are stored rather differently, so a fix for one probably won't fix the other.

OTOH, image:Example.svg probably had a large history of both types so it could be either issue that the reporter is running into.

Unmarking as dupe.

But when attempting

to delete a single version, you'll reproducibly get

So just to clarify, you were deleting a single version of the image (not a single revision of the page history)? What method were you using - revision delete or old fashion delete?

Actually, this is kind of odd. I don't see any reason deleting a single revision of an image (I'm assuming you pressed the "delete" link at the left of the image history table for an image version that was not the most recent one) would cause the servers to cry. All that needs to be done is move one file around, move one row, delete some cached thumbs. Nothing that should be too taxing on the server.

Now thumbnailing of *all* revisions fails at https://commons.wikimedia.org/w/index.php?title=File:Test.svg&dir=prev

(In reply to comment #3)

I'm assuming you pressed the "delete" link at the left of
the image history table for an image version that was not the most recent one

Indeed. Deletion still does not work properly (tried the oldest version) but the error message is now:

<< There is no archived version of "Test.svg" with the specified attributes. >>

(URL was: https://commons.wikimedia.org/w/index.php?title=File:Test.svg&action=delete&oldimage=20111029080645!Test.svg // message is MediaWiki:Filedelete-nofile-old )

The revision was deleted, though. I tried it again with another version with the same result: Error message but file revision deleted and deletion properly logged.

Lowering priority:
So at least we are again able to delete a version at all in case there are data that should not be disclosed to the public.