$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-IP-CMatch.git /var/lib/mock/f45-build-25301-610/root/chroot_tmpdir/scmroot/perl-Net-IP-CMatch
Cloning into '/var/lib/mock/f45-build-25301-610/root/chroot_tmpdir/scmroot/perl-Net-IP-CMatch'...
$ git fetch origin 0ea7328ed6845ac1d52b8a34c0a6401d1c08824c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-IP-CMatch
 * [new ref]         0ea7328ed6845ac1d52b8a34c0a6401d1c08824c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ea7328 Perl 5.44 rebuild