$ git clone -n https://src.fedoraproject.org/rpms/xeyes.git /var/lib/mock/f40-build-2225344-52815/root/chroot_tmpdir/scmroot/xeyes
Cloning into '/var/lib/mock/f40-build-2225344-52815/root/chroot_tmpdir/scmroot/xeyes'...
$ git fetch origin e782d8341c6e4a99fc7c04573e1a4ae8ae5dbf4c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xeyes
 * [new ref]         e782d8341c6e4a99fc7c04573e1a4ae8ae5dbf4c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e782d83 SPDX migration