I just reviewed a proposed edit on a SO question. At first it seemed that the edit was just just "how to" to "how-to". So I rejected the edit. However, my mistake turned out to be that there also was a change to a hyperlink in that edit which was relevant and should be approved. Is there any way to undo my rejection and approve the edit instead?
No, it is not possible to "undo" or "redo" your review. I believe there are two things you can do: