I just recently suggested an edit to a particular question, which was pending review, and then noticed a little later that the question had been updated following an edit. This was not my edit, but rather the edit of another user who has sufficiently high rep (+10,000) so that edits by this user are applied automatically. My issue is that the current edit actually continues to have some spelling issues. Shouldn't this user have been notified that an edit was already pending? It seems odd to me that someone would disregard a perfectly good edit (I spent some time making sure that I didn't leave any issues of my own; however I don't have access to my edit anymore to show that it is in fact an improvement over the current one) for a lower-quality one, which required them to take the time to fix up the question themselves.
Now, the typos introduced are relatively minor, but it's just bothering me that my own edit was ignored. Shouldn't such a user see that the question has been edited, review the edit, accept it if it's good, and fix it if there are still any issues? What has happened here is that the edit is completely different from the original, so that it is apparent that the original was completely ignored.
Is this just carelessness on the part of the particular user? Or is it possible that a +3000 rep user can edit a post without realizing that there is one already in the queue?