The following thing has happened to me a couple of times recently:
I come across a question that looks good but has a few minor errors. Someone has suggested an edit which address some of them, so I accept it. It then says that the edit has to be approved by one other person before it will be accepted.
A bit later on I realise that there are some other things that should be improved, so I try to make an edit of my own - but I can't, because when I click on edit I just see the diff of the suggested edit, with a sign saying it needs to be approved by other users before it can be accepted.
This seems a bit strange to me, because
(a) I have enough rep to edit questions without it needing to be reviewed, so if I just rejected the suggested edits and made the same changes myself, they would happen instantly (but that would of course be mean); and
(b) Approving someone else's edit seems to lock me out of being able to make my own edits or even view the edit history until someone else also approves it, which is just weird.
Each of these things seems to create a strange disincentive to approve edits from other users. So my questions are:
What is the rationale for this behaviour? Why do I have the power to make my own edits without needing approval but not the power to approve someone else's edits without further approval?
Am I really completely locked out of editing the post in such a case, or is there some other way I can make my own edit or look at the edit history?
Steps to reproduce
I believe part of the problem is a bug, or at least an unintended consequence of the rep system. Since it's not easy to explain in writing, here is a series of screenshots illustrating the issue.
Here is a question with a suggested edit:
I click on "edit (1)" to see the suggested edit, and I see this:
It's a minor cosmetic change, but the question is only 5 hours old, so this seems appropriate and I press "Approve", which gives me the following message:
I close the message and go back to the question. I refreshed the page at this point, just to make sure that wasn't the issue. The question now looks like this:
i.e. exactly the same as before, because the suggested edit hasn't been approved yet. So far so good. But suppose I now spot a more serious issue with the question that I'd missed before. I want to fix it, so again I click on "edit (1)", but this does not take me to the edit queue. Instead I see this:
I wasn't able to fit the whole dialogue box into the screen shot, but there is no link to the edit queue at the bottom. Clicking "(more)" just reveals some stats but no link to the edit queue.
This is what I mean by being "locked out of editing". The edit queue is replaced by this dialogue, with no option to edit the post in any way, until another user approves the suggested edit. Sklivvz commented that
if there is a pending suggested edit, one can get to the review queue by clicking on the "edit(1)" at the bottom of the post
If that is the intended behaviour then the current behaviour is a bug.