I rejected a suggested edit on Drupal Answers by improving it, and not selecting the "Suggested edit was helpful" checkbox.
Notice the edit is shown only as rejected, when it normally would show the suggested edit as rejected from the Community user and edited from me.
The suggested edit doesn't appear on the page listing the history of the suggested edits, though.
Looking at the revision page for that question, I don't see other edits, if not mine (which I did when improving/rejecting the suggested edit), and the first edit done from the OP.
I am sure I clicked on the "improve" button, and not the "reject" one, to then click on the "history" tab, click on the post link shown there, and edit the post from the question page.
Even in that would be the case, the "history" tab should still show the rejected suggested edit.
What I was expecting to see is what I see for this other suggested edit, which is shown in the "history" tab.
A similar case happened on this very site too. I did the same for this suggested edit. The difference is that the "history" tab shows the suggested edit as approved, when it was rejected.
Even in this case, the fact somebody else clicked on the "improve" button was not kept, as if the suggested edit was rejected, and then somebody edit the post.
Also the "history" tab forgot about the "improve" button being clicked; the difference is that the page about the suggested edit shows the suggested edit as rejected from the Community user.
This would explain why in the Drupal Answers case there is no track of the rejected edit in the "history" tab. In the second case there is track of the suggested edit since a user voted to approve it.