$ git clone -n https://gitee.com/kun-llfl/bcc.git /var/lib/mock/dist-an23-build-213613-61956/root/chroot_tmpdir/scmroot/bcc
Cloning into '/var/lib/mock/dist-an23-build-213613-61956/root/chroot_tmpdir/scmroot/bcc'...
$ git reset --hard 8cff724ef336bf9e4b9e9aeb49dc1b1238ecf91b
HEAD is now at 8cff724 spec optimisation