$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/gcc-toolset-9-systemtap /var/lib/mock/dist-el8-build-6204-86/root/chroot_tmpdir/scmroot/gcc-toolset-9-systemtap
Cloning into '/var/lib/mock/dist-el8-build-6204-86/root/chroot_tmpdir/scmroot/gcc-toolset-9-systemtap'...
$ git reset --hard origin/a8
HEAD is now at 5c35117 import gcc-toolset-9-systemtap-4.1-4.el8.src.rpm