$ git clone -n https://src.fedoraproject.org/rpms/rubygem-formatador.git /var/lib/mock/f45-build-34910-692/root/chroot_tmpdir/scmroot/rubygem-formatador
Cloning into '/var/lib/mock/f45-build-34910-692/root/chroot_tmpdir/scmroot/rubygem-formatador'...
$ git fetch origin 3c680a59f182bddd4e7e946a341375184ddc2ed8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-formatador
 * [new ref]         3c680a59f182bddd4e7e946a341375184ddc2ed8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c680a5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild