$ git clone -n https://src.fedoraproject.org/rpms/perl-Exporter.git /var/lib/mock/f41-build-815692-149688/root/chroot_tmpdir/scmroot/perl-Exporter
Cloning into '/var/lib/mock/f41-build-815692-149688/root/chroot_tmpdir/scmroot/perl-Exporter'...
$ git fetch origin 1b7d2f48088ebd49eb13f078acd5cfe8075209d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Exporter
 * [new ref]         1b7d2f48088ebd49eb13f078acd5cfe8075209d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b7d2f4 Increase release to favour standalone package