$ git clone -n https://src.fedoraproject.org/rpms/apache-commons-logging.git /var/lib/mock/f40-build-2209977-52174/root/chroot_tmpdir/scmroot/apache-commons-logging
Cloning into '/var/lib/mock/f40-build-2209977-52174/root/chroot_tmpdir/scmroot/apache-commons-logging'...
$ git fetch origin 32daaca6960528b00e8c66475e084890a2c8b1a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apache-commons-logging
 * [new ref]         32daaca6960528b00e8c66475e084890a2c8b1a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32daaca Update javapackages test plan to f40