$ git clone -n https://gitee.com/zhaohang_mskdxl/postgresql.git /var/lib/mock/dist-an8.6-build-152510-57916/root/chroot_tmpdir/scmroot/postgresql
Cloning into '/var/lib/mock/dist-an8.6-build-152510-57916/root/chroot_tmpdir/scmroot/postgresql'...
$ git reset --hard 81f987b3d5516c8a9b534297e2918e50c7d4ee63
HEAD is now at 81f987b update to 8.7.0