$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-kkc.git /var/lib/mock/f41-build-side-1-2811315-32929/root/chroot_tmpdir/scmroot/fcitx5-kkc
Cloning into '/var/lib/mock/f41-build-side-1-2811315-32929/root/chroot_tmpdir/scmroot/fcitx5-kkc'...
$ git fetch origin 3e71694f690d82323081a11ca90ec12bb0e39313:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-kkc
 * [new ref]         3e71694f690d82323081a11ca90ec12bb0e39313 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e71694 convert GPLv3+ license to SPDX