$ git clone -n https://src.fedoraproject.org/rpms/foxi.git /var/lib/mock/f41-build-771036-13498/root/chroot_tmpdir/scmroot/foxi
Cloning into '/var/lib/mock/f41-build-771036-13498/root/chroot_tmpdir/scmroot/foxi'...
$ git fetch origin ea3b7593e2a1af1a3b5afdb495963abe94778d84:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/foxi
 * [new ref]         ea3b7593e2a1af1a3b5afdb495963abe94778d84 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ea3b759 Initial package