$ git clone -n https://src.fedoraproject.org/rpms/libreoffice.git /var/lib/mock/f41-build-side-1-2812324-32939/root/chroot_tmpdir/scmroot/libreoffice
Cloning into '/var/lib/mock/f41-build-side-1-2812324-32939/root/chroot_tmpdir/scmroot/libreoffice'...
$ git fetch origin ab559693b3f152cec7e38be8274797495dc65850:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libreoffice
 * [new ref]         ab559693b3f152cec7e38be8274797495dc65850 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab55969 Enable Georgian langpack