$ git clone -n https://src.fedoraproject.org/rpms/perl-TimeDate.git /var/lib/mock/f45-build-27128-621/root/chroot_tmpdir/scmroot/perl-TimeDate
Cloning into '/var/lib/mock/f45-build-27128-621/root/chroot_tmpdir/scmroot/perl-TimeDate'...
$ git fetch origin 10cedb9e47f6038bab6b62519cba3bc41f05cf91:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-TimeDate
 * [new ref]         10cedb9e47f6038bab6b62519cba3bc41f05cf91 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10cedb9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild