$ git clone -n https://src.fedoraproject.org/rpms/Xaw3d.git /var/lib/mock/f40-build-788397-135139/root/chroot_tmpdir/scmroot/Xaw3d
Cloning into '/var/lib/mock/f40-build-788397-135139/root/chroot_tmpdir/scmroot/Xaw3d'...
$ git fetch origin f9a7667a95b85e100c4bc02cb5f094af1b1bc400:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/Xaw3d
 * [new ref]         f9a7667a95b85e100c4bc02cb5f094af1b1bc400 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9a7667 SPDX license tags