$ git clone -n https://gitee.com/kun-llfl/bcc.git /var/lib/mock/dist-an23-build-212726-61944/root/chroot_tmpdir/scmroot/bcc
Cloning into '/var/lib/mock/dist-an23-build-212726-61944/root/chroot_tmpdir/scmroot/bcc'...
$ git reset --hard db255734f82dc8d38e0a552dfa71ed6144432d0f
HEAD is now at db25573 spec optimisation