$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-Random.git /var/lib/mock/f45-build-25336-610/root/chroot_tmpdir/scmroot/perl-Net-Random
Cloning into '/var/lib/mock/f45-build-25336-610/root/chroot_tmpdir/scmroot/perl-Net-Random'...
$ git fetch origin c03d0652b3592034f5bcc8f63c656b0693327cf8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-Random
 * [new ref]         c03d0652b3592034f5bcc8f63c656b0693327cf8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c03d065 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild