Ludovic Courtès writes: > IIUC, now that has been closed, > this bug is fixed. Am I right? Yes, I believe so. All store items referenced by Racket now seem to be properly grafted, so I'm closing this bug now. The more general issue with the grafting code--namely that since commit 57bdd79e48, it no longer has the desirable property of checking every byte against an expected value before rewriting it, which can lead to silent corruption of files such as Racket .zo files if any store items references sneak in--can be addressed in another bug report. Thanks, Mark