$ git clone -n https://src.fedoraproject.org/rpms/rubygem-shindo.git /var/lib/mock/f45-build-35315-694/root/chroot_tmpdir/scmroot/rubygem-shindo
Cloning into '/var/lib/mock/f45-build-35315-694/root/chroot_tmpdir/scmroot/rubygem-shindo'...
$ git fetch origin 24896dc3257c19f3119a562a30dc4b94e4f66e96:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-shindo
 * [new ref]         24896dc3257c19f3119a562a30dc4b94e4f66e96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 24896dc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild