$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-sayura.git /var/lib/mock/f41-build-side-1-2635228-26101/root/chroot_tmpdir/scmroot/fcitx5-sayura
Cloning into '/var/lib/mock/f41-build-side-1-2635228-26101/root/chroot_tmpdir/scmroot/fcitx5-sayura'...
$ git fetch origin d997fc972071b7327f6368d65d9855b8f1a3ef69:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-sayura
 * [new ref]         d997fc972071b7327f6368d65d9855b8f1a3ef69 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d997fc9 convert GPLv2+ license to SPDX