$ git clone -n https://src.fedoraproject.org/rpms/perl-Sort-Naturally.git /var/lib/mock/f45-build-26266-616/root/chroot_tmpdir/scmroot/perl-Sort-Naturally
Cloning into '/var/lib/mock/f45-build-26266-616/root/chroot_tmpdir/scmroot/perl-Sort-Naturally'...
$ git fetch origin 91cb0eae827ebaafb9ddee341a1404a3663723d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sort-Naturally
 * [new ref]         91cb0eae827ebaafb9ddee341a1404a3663723d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91cb0ea Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild