$ git clone -n https://src.fedoraproject.org/rpms/perl-Tie-RefHash.git /var/lib/mock/f43-perl-60945628-6586562/root/chroot_tmpdir/scmroot/perl-Tie-RefHash
Cloning into '/var/lib/mock/f43-perl-60945628-6586562/root/chroot_tmpdir/scmroot/perl-Tie-RefHash'...
$ git fetch origin 809159dece869498b0544229f31f23d4ed5dc519:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Tie-RefHash
 * [new ref]         809159dece869498b0544229f31f23d4ed5dc519 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 809159d Increase release to favour standalone package