$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-FTP-RetrHandle.git /var/lib/mock/f45-build-25290-610/root/chroot_tmpdir/scmroot/perl-Net-FTP-RetrHandle
Cloning into '/var/lib/mock/f45-build-25290-610/root/chroot_tmpdir/scmroot/perl-Net-FTP-RetrHandle'...
$ git fetch origin bc0be07de59b77a4ed06b22e7ada84b8ee3584e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-FTP-RetrHandle
 * [new ref]         bc0be07de59b77a4ed06b22e7ada84b8ee3584e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc0be07 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild