$ git clone -n https://src.fedoraproject.org/rpms/perl-Workflow.git /var/lib/mock/f45-build-27415-624/root/chroot_tmpdir/scmroot/perl-Workflow
Cloning into '/var/lib/mock/f45-build-27415-624/root/chroot_tmpdir/scmroot/perl-Workflow'...
$ git fetch origin 3a3c842c8ac704ff9e0eb834b135229d55734175:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Workflow
 * [new ref]         3a3c842c8ac704ff9e0eb834b135229d55734175 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a3c842 Update to 2.10