$ git clone -n https://src.fedoraproject.org/rpms/zork.git /var/lib/mock/f40-build-2046684-48895/root/chroot_tmpdir/scmroot/zork
Cloning into '/var/lib/mock/f40-build-2046684-48895/root/chroot_tmpdir/scmroot/zork'...
$ git fetch origin 78a31b59ae13fafee4b65f3f49e0ed9469998d27:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zork
 * [new ref]         78a31b59ae13fafee4b65f3f49e0ed9469998d27 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78a31b5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild