I still remember the time as I was able to approve suggested edits. Then at some point my approvals start require an agreement of a further user.
The only possible reason for this restriction I can imagine: once I approved a good edit but to the moment of the approval some other user has edited the post and the edit which I have approved (and which suggested essentially the same changes) was undone.
But this is only a suggestion which I would like now to resolve. Therefore my question: what is the exact reason for this restriction and when will it end?