$ git clone -n https://src.fedoraproject.org/rpms/akonadi-search.git /var/lib/mock/f42-build-3282659-41399/root/chroot_tmpdir/scmroot/akonadi-search
Cloning into '/var/lib/mock/f42-build-3282659-41399/root/chroot_tmpdir/scmroot/akonadi-search'...
$ git fetch origin a2f21d747b191b11bf60a1a6c0e16913470a657c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/akonadi-search
 * [new ref]         a2f21d747b191b11bf60a1a6c0e16913470a657c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2f21d7 Rebuild for ppc64le enablement