$ git clone -n https://gitee.com/wenyuzifang/xsimd.git /var/lib/mock/dist-an23-build-464414-73881/root/chroot_tmpdir/scmroot/xsimd
Cloning into '/var/lib/mock/dist-an23-build-464414-73881/root/chroot_tmpdir/scmroot/xsimd'...
$ git fetch origin efdefbb1800d603c5312f24538583fbac906383b:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/xsimd
 * [new ref]         efdefbb1800d603c5312f24538583fbac906383b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at efdefbb Update code from upstream