$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/gcc-toolset-9-strace /var/lib/mock/dist-el8-build-6203-86/root/chroot_tmpdir/scmroot/gcc-toolset-9-strace
Cloning into '/var/lib/mock/dist-el8-build-6203-86/root/chroot_tmpdir/scmroot/gcc-toolset-9-strace'...
$ git reset --hard origin/a8
HEAD is now at 563e6ca import gcc-toolset-9-strace-5.1-6.el8.src.rpm