$ git clone -n https://src.fedoraproject.org/rpms/perl-Geo-IP.git /var/lib/mock/f45-build-23778-599/root/chroot_tmpdir/scmroot/perl-Geo-IP
Cloning into '/var/lib/mock/f45-build-23778-599/root/chroot_tmpdir/scmroot/perl-Geo-IP'...
$ git fetch origin 47fbcee157f6e6d8948b1f8705a11ffc927cf524:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Geo-IP
 * [new ref]         47fbcee157f6e6d8948b1f8705a11ffc927cf524 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47fbcee Perl 5.44 rebuild