$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-lua.git /var/lib/mock/f40-build-2145764-50880/root/chroot_tmpdir/scmroot/fcitx5-lua
Cloning into '/var/lib/mock/f40-build-2145764-50880/root/chroot_tmpdir/scmroot/fcitx5-lua'...
$ git fetch origin 23ffbe1629d12b5f31bcbfd6fdac98262433b2a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-lua
 * [new ref]         23ffbe1629d12b5f31bcbfd6fdac98262433b2a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 23ffbe1 update to upstream release 5.0.11