I have enough reputation that when I edit someone else's question, the change happens immediately (though sometimes it would be nice to disable this privilege).
But if I see a post with a pending edit and approve the change, the change doesn't happen.
Instead there is a message:
It needs more reviews from other users to be completed.
Changes I make all by myself are instantly approved, but changes that are acceptable to two people (myself and the editor) require further approval.
I'm missing the logic behind this policy.