$ git clone -n https://src.fedoraproject.org/rpms/apache-commons-net.git /var/lib/mock/f40-build-2047070-48950/root/chroot_tmpdir/scmroot/apache-commons-net
Cloning into '/var/lib/mock/f40-build-2047070-48950/root/chroot_tmpdir/scmroot/apache-commons-net'...
$ git fetch origin 4a3bd31831ed30a4fe2ed71c4879f2c0e75c8aa4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apache-commons-net
 * [new ref]         4a3bd31831ed30a4fe2ed71c4879f2c0e75c8aa4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a3bd31 Update javapackages test plan to f40