$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-IDN-Nameprep.git /var/lib/mock/f45-build-25303-610/root/chroot_tmpdir/scmroot/perl-Net-IDN-Nameprep
Cloning into '/var/lib/mock/f45-build-25303-610/root/chroot_tmpdir/scmroot/perl-Net-IDN-Nameprep'...
$ git fetch origin a98915819c511bebe34230f10d6d3e5f312bf9c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-IDN-Nameprep
 * [new ref]         a98915819c511bebe34230f10d6d3e5f312bf9c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a989158 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild