$ git clone -n https://src.fedoraproject.org/rpms/racket.git /var/lib/mock/f45-build-34268-683/root/chroot_tmpdir/scmroot/racket
Cloning into '/var/lib/mock/f45-build-34268-683/root/chroot_tmpdir/scmroot/racket'...
$ git fetch origin 4e887634c11ffed3e9e3451a4ad3e37e88ee9a00:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/racket
 * [new ref]         4e887634c11ffed3e9e3451a4ad3e37e88ee9a00 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e88763 https://blog.racket-lang.org/2026/08/racket-v9-3.html