There are two ways you can track a reread on The StoryGraph:
1. Track it in real time by changing the book's status to 'currently reading' and track as normal. Then move it back to 'read' when you're done and it'll be tracked as a reread. You should see something like this in the Activity section of the book page:
2. Track your reread retroactively by going to the book page and clicking View/Edit Read History (behind the three-dot menu in the app). Then use this panel to add in the dates of your reread:
Rereads are displayed as separate entries in your read list.
To track a reread against a different edition, simply mark the edition you want as 'read' or 'currently reading' as normal. You'll still see the 'You have read this book 2 times' on both editions' pages. :-)
You can only leave one review per edition, so if you'd like to add a new review for your reread, we recommend editing your existing review and adding your new review below the old one.