$ git clone -n https://src.fedoraproject.org/rpms/fcitx.git /var/lib/mock/f40-build-1812240-24896/root/chroot_tmpdir/scmroot/fcitx
Cloning into '/var/lib/mock/f40-build-1812240-24896/root/chroot_tmpdir/scmroot/fcitx'...
$ git fetch origin 9c8f3d2298cbe61eb9985ea2e2742f766849fbc1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx
 * [new ref]         9c8f3d2298cbe61eb9985ea2e2742f766849fbc1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9c8f3d2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild