$ git clone -n https://src.fedoraproject.org/rpms/fcitx-chewing.git /var/lib/mock/f45-build-8739-394/root/chroot_tmpdir/scmroot/fcitx-chewing
Cloning into '/var/lib/mock/f45-build-8739-394/root/chroot_tmpdir/scmroot/fcitx-chewing'...
$ git fetch origin 6d626f602c36ba6c05e12e719f5ac7d296513378:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx-chewing
 * [new ref]         6d626f602c36ba6c05e12e719f5ac7d296513378 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d626f6 Allow to build with CMake 4.0 (rhbz#2380575)