$ git clone -n https://src.fedoraproject.org/rpms/xmlunit.git /var/lib/mock/f40-build-2046058-48834/root/chroot_tmpdir/scmroot/xmlunit
Cloning into '/var/lib/mock/f40-build-2046058-48834/root/chroot_tmpdir/scmroot/xmlunit'...
$ git fetch origin 69e3dfa8e7efd620f98ee714c86934bcd43e81d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmlunit
 * [new ref]         69e3dfa8e7efd620f98ee714c86934bcd43e81d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 69e3dfa Update javapackages test plan to f40