$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-BGP.git /var/lib/mock/f45-build-25244-610/root/chroot_tmpdir/scmroot/perl-Net-BGP
Cloning into '/var/lib/mock/f45-build-25244-610/root/chroot_tmpdir/scmroot/perl-Net-BGP'...
$ git fetch origin 8399fa1aa2d517e0996f5211ad0bc2b40155e77f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-BGP
 * [new ref]         8399fa1aa2d517e0996f5211ad0bc2b40155e77f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8399fa1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild