$ git clone -n https://gitee.com/mgb01105731/qpid-proton.git /var/lib/mock/dist-an23-build-336919-69699/root/chroot_tmpdir/scmroot/qpid-proton
Cloning into '/var/lib/mock/dist-an23-build-336919-69699/root/chroot_tmpdir/scmroot/qpid-proton'...
$ git reset --hard origin/a23
HEAD is now at 85e5cfc rebuild