$ git clone -n https://src.fedoraproject.org/rpms/rit-tn-joy-fonts.git /var/lib/mock/f40-build-1498112-23864/root/chroot_tmpdir/scmroot/rit-tn-joy-fonts
Cloning into '/var/lib/mock/f40-build-1498112-23864/root/chroot_tmpdir/scmroot/rit-tn-joy-fonts'...
$ git fetch origin 2ad65ca0e75680ddf0d854c17bd2a88497c9c3ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rit-tn-joy-fonts
 * [new ref]         2ad65ca0e75680ddf0d854c17bd2a88497c9c3ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ad65ca Fix name in fontconfig