$ git clone -n https://src.fedoraproject.org/rpms/maven-parent.git /var/lib/mock/f40-build-2194853-51502/root/chroot_tmpdir/scmroot/maven-parent
Cloning into '/var/lib/mock/f40-build-2194853-51502/root/chroot_tmpdir/scmroot/maven-parent'...
$ git fetch origin 5509239f15014f4721876310e0f1447928291eee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-parent
 * [new ref]         5509239f15014f4721876310e0f1447928291eee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5509239 Update javapackages test plan to f40