$ git clone -n https://src.fedoraproject.org/rpms/spindown.git /var/lib/mock/f39-build-1533846-36230/root/chroot_tmpdir/scmroot/spindown
Cloning into '/var/lib/mock/f39-build-1533846-36230/root/chroot_tmpdir/scmroot/spindown'...
$ git fetch origin ec996b1c9ae693eae294264ff5afbefb94fb6ab6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/spindown
 * [new ref]         ec996b1c9ae693eae294264ff5afbefb94fb6ab6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec996b1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild