$ git clone -n https://src.fedoraproject.org/rpms/rubygem-temple.git /var/lib/mock/f45-build-35374-695/root/chroot_tmpdir/scmroot/rubygem-temple
Cloning into '/var/lib/mock/f45-build-35374-695/root/chroot_tmpdir/scmroot/rubygem-temple'...
$ git fetch origin 7fb6afe41218b142a0223c2cad60239cdf231df9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-temple
 * [new ref]         7fb6afe41218b142a0223c2cad60239cdf231df9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fb6afe Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild