$ git clone -n https://src.fedoraproject.org/rpms/gutenprint.git /var/lib/mock/f39-build-1629210-39527/root/chroot_tmpdir/scmroot/gutenprint
Cloning into '/var/lib/mock/f39-build-1629210-39527/root/chroot_tmpdir/scmroot/gutenprint'...
$ git fetch origin c8dc604f7f6e28bb787f45068f94500dd9928170:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gutenprint
 * [new ref]         c8dc604f7f6e28bb787f45068f94500dd9928170 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c8dc604 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild