$ git clone -n https://gitee.com/carlo_bai/xxhash.git /var/lib/mock/dist-an23-build-209500-61864/root/chroot_tmpdir/scmroot/xxhash
Cloning into '/var/lib/mock/dist-an23-build-209500-61864/root/chroot_tmpdir/scmroot/xxhash'...
$ git reset --hard 50c49a438f8a9b35edce18ef0a6f5082908ff38d
HEAD is now at 50c49a4 optimize doc package