$ git clone -n https://src.fedoraproject.org/rpms/rubygem-public_suffix.git /var/lib/mock/f45-build-35226-694/root/chroot_tmpdir/scmroot/rubygem-public_suffix
Cloning into '/var/lib/mock/f45-build-35226-694/root/chroot_tmpdir/scmroot/rubygem-public_suffix'...
$ git fetch origin 92173431ac1128c3e269ab1017e4bda94680d79e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-public_suffix
 * [new ref]         92173431ac1128c3e269ab1017e4bda94680d79e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9217343 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild