$ git clone -n https://src.fedoraproject.org/rpms/perl-Test2-Harness.git /var/lib/mock/f45-build-26907-620/root/chroot_tmpdir/scmroot/perl-Test2-Harness
Cloning into '/var/lib/mock/f45-build-26907-620/root/chroot_tmpdir/scmroot/perl-Test2-Harness'...
$ git fetch origin c9432ae10cb5b0598a54ab31fa8645ae098dbda0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test2-Harness
 * [new ref]         c9432ae10cb5b0598a54ab31fa8645ae098dbda0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9432ae 1.000177 bump