$ git clone -n https://src.fedoraproject.org/rpms/kcron.git /var/lib/mock/eln-build-side-115125-61061732-6588359/root/chroot_tmpdir/scmroot/kcron
Cloning into '/var/lib/mock/eln-build-side-115125-61061732-6588359/root/chroot_tmpdir/scmroot/kcron'...
$ git fetch origin 9ab002a4f5da753a18e9980b383f5f785aee8486:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kcron
 * [new ref]         9ab002a4f5da753a18e9980b383f5f785aee8486 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ab002a 25.07.80