$ git clone -n https://gitee.com/gcdota930915/boost.git /var/lib/mock/dist-an8.7-build-162253-58645/root/chroot_tmpdir/scmroot/boost
Cloning into '/var/lib/mock/dist-an8.7-build-162253-58645/root/chroot_tmpdir/scmroot/boost'...
$ git reset --hard origin/a8
HEAD is now at ccdb1d8 [build][c++] backport patches to fit with C++20 until upstream chase up