$ git clone -n https://src.fedoraproject.org/rpms/osgi-compendium.git /var/lib/mock/f40-build-2180069-51101/root/chroot_tmpdir/scmroot/osgi-compendium
Cloning into '/var/lib/mock/f40-build-2180069-51101/root/chroot_tmpdir/scmroot/osgi-compendium'...
$ git fetch origin 15a052f6337ddc1ca2705e100ed3ca070f612694:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/osgi-compendium
 * [new ref]         15a052f6337ddc1ca2705e100ed3ca070f612694 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15a052f Update javapackages test plan to f40