$ git clone -n https://gitee.com/zhangwenlong01/fftw.git /var/lib/mock/dist-an23-build-300464-65951/root/chroot_tmpdir/scmroot/fftw
Cloning into '/var/lib/mock/dist-an23-build-300464-65951/root/chroot_tmpdir/scmroot/fftw'...
$ git fetch origin 832a232f23d4df99cfd82c79b9088c0a8eb93580:KOJI_FETCH_HEAD
From https://gitee.com/zhangwenlong01/fftw
 * [new ref]         832a232f23d4df99cfd82c79b9088c0a8eb93580 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 832a232 update config.sub and config.guess for loongarch64