$ git clone -n https://src.fedoraproject.org/rpms/fcitx-kkc.git /var/lib/mock/f45-build-8748-394/root/chroot_tmpdir/scmroot/fcitx-kkc
Cloning into '/var/lib/mock/f45-build-8748-394/root/chroot_tmpdir/scmroot/fcitx-kkc'...
$ git fetch origin 5c7f792b254c128db58a6817799fdd8129f9bbb8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx-kkc
 * [new ref]         5c7f792b254c128db58a6817799fdd8129f9bbb8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c7f792 Allow to build with CMake 4.0 (rhbz#2380586)