$ git clone -n https://src.fedoraproject.org/rpms/sssd.git /var/lib/mock/f40-build-2718988-72991/root/chroot_tmpdir/scmroot/sssd
Cloning into '/var/lib/mock/f40-build-2718988-72991/root/chroot_tmpdir/scmroot/sssd'...
$ git fetch origin ee34878d04cb93ba87c33c4b17de48763f7d162e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sssd
 * [new ref]         ee34878d04cb93ba87c33c4b17de48763f7d162e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ee34878 Restore i686 on Fedora ELN