$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-mozc.git /var/lib/mock/f40-build-801599-143831/root/chroot_tmpdir/scmroot/fcitx5-mozc
Cloning into '/var/lib/mock/f40-build-801599-143831/root/chroot_tmpdir/scmroot/fcitx5-mozc'...
$ git fetch origin 8c7541245ae6ad3ec04ac0e72ea32dced198bb01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-mozc
 * [new ref]         8c7541245ae6ad3ec04ac0e72ea32dced198bb01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c75412 rebuild for abseil-cpp 20240116.0