$ git clone -n https://src.fedoraproject.org/rpms/fcitx-kkc.git /var/lib/mock/f40-build-790286-136400/root/chroot_tmpdir/scmroot/fcitx-kkc
Cloning into '/var/lib/mock/f40-build-790286-136400/root/chroot_tmpdir/scmroot/fcitx-kkc'...
$ git fetch origin 2482676e1e13bd4f5afb0eb1063176b943d97363:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx-kkc
 * [new ref]         2482676e1e13bd4f5afb0eb1063176b943d97363 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2482676 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild