Making changes to edits

Editing a question to make it clearer is always a good way to improve the environment of this community. But I found that, while some mistakes are made throughout editing the post, it seems like we cannot make further changes to it, and even I could not delete it. It seems like a kinds of embarrassing to see the mistake laying on the "edits" column.

And it becomes more embarrassing particularly when the edit is accepted.

Is it a problem to be solved?

• I've changed the tags of your question; for a [feature-request], you need to post a suggested solution to the proposed problem. – Glorfindel Jun 5 '17 at 11:39
• @Glorfindel I understood the post as proposing the feature "retract suggested edit" (or also "modify"), that is a user that realizes they made an error in their suggested edit could withdraw it (or correct). – quid Jun 5 '17 at 13:43
• Could be – I added another paragraph to my answer. It would help if the OP let us know what he/she really meant. – Glorfindel Jun 5 '17 at 13:47

$$\text{# rejects} - \frac{\text{# approvals}}{3} >= 5$$