$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-rime.git /var/lib/mock/f38-build-side-42-init-devel-737432-27649/root/chroot_tmpdir/scmroot/fcitx5-rime
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-737432-27649/root/chroot_tmpdir/scmroot/fcitx5-rime'...
$ git fetch origin 5ec82391d8472058771109700aca11bbf159cf60:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-rime
 * [new ref]         5ec82391d8472058771109700aca11bbf159cf60 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ec8239 update to upstream release 5.0.16