$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/libblockdev /var/lib/mock/dist-el8-build-5444-34/root/chroot_tmpdir/scmroot/libblockdev
Cloning into '/var/lib/mock/dist-el8-build-5444-34/root/chroot_tmpdir/scmroot/libblockdev'...
$ git reset --hard origin/a8
HEAD is now at c435ac4 import libblockdev-2.19-12.el8.src.rpm