$ git clone -n https://src.fedoraproject.org/rpms/sblim-sfcCommon.git /var/lib/mock/f45-build-35636-698/root/chroot_tmpdir/scmroot/sblim-sfcCommon
Cloning into '/var/lib/mock/f45-build-35636-698/root/chroot_tmpdir/scmroot/sblim-sfcCommon'...
$ git fetch origin 8c6498b92b998ad385d74f4bd69a9b81ce2723e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sblim-sfcCommon
 * [new ref]         8c6498b92b998ad385d74f4bd69a9b81ce2723e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c6498b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild