When I looked on the question list in the new navigation (don't know if it is specific there or not), I saw a spam post being 'modified' by OP. Since that is quite uncommon, I though of checking it out.
Then I saw the actual answer, and it wasn't edited at all. And definitely not by OP, if it was modified by Community since it was marked as spam, the change should be on its name. Also, the modified time stamp doesn't seem to be correct.
Can this be considered a bug or by design? Should we change the attribution if that is what caused the post to be modified?