$ git clone -n https://src.fedoraproject.org/rpms/apache-commons-cli.git /var/lib/mock/f40-build-2047049-48950/root/chroot_tmpdir/scmroot/apache-commons-cli
Cloning into '/var/lib/mock/f40-build-2047049-48950/root/chroot_tmpdir/scmroot/apache-commons-cli'...
$ git fetch origin 474cbe82ab8996aec3caff21354cbf44d5f0233d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apache-commons-cli
 * [new ref]         474cbe82ab8996aec3caff21354cbf44d5f0233d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 474cbe8 Update javapackages test plan to f40