adding a 1.6.5.4 node to 1.7 node or vice versa can make cluster unusable if user clicks on rebalance after addNode

if the user adds a 1.6.5.4 node to a 1.7 cluster addnode goes through without raising any exception and if user clicks on rebalance then cluster becomes unusable.

Service moxi exited on node 'ns_1@10.1.6.149' in 0.00s
supervisor_cushion001 ns_1@10.1.6.149 23:53:00 - Fri Jul 1, 2011
Service memcached exited on node 'ns_1@10.1.6.149' in 0.00s
supervisor_cushion001 ns_1@10.1.6.149 23:52:55 - Fri Jul 1, 2011
Service moxi exited on node 'ns_1@10.1.6.149' in 0.00s
supervisor_cushion001 ns_1@10.1.6.149 23:52:55 - Fri Jul 1, 2011
Service memcached exited on node 'ns_1@10.1.6.149' in 0.00s
supervisor_cushion001 ns_1@10.1.6.149 23:52:50 - Fri Jul 1, 2011
Service memcached exited on node 'ns_1@10.1.6.149' in 0.00s
supervisor_cushion001 ns_1@10.1.6.149 23:52:50 - Fri Jul 1, 2011
Service moxi exited on node 'ns_1@10.1.6.149' in 0.00s
supervisor_cushion001 ns_1@10.1.6.149 23:52:50 - Fri Jul 1, 2011
Service memcached exited on node 'ns_1@10.1.6.149' in 0.00s
supervisor_cushion001 ns_1@10.1.6.149 23:52:45 - Fri Jul 1, 2011
Service moxi exited on node 'ns_1@10.1.6.149' in 0.00s
supervisor_cushion001 ns_1@10.1.6.149 23:52:45 - Fri Jul 1, 2011
Service moxi exited on node 'ns_1@10.1.6.149' in 0.00s
supervisor_cushion001 ns_1@10.1.6.149 23:52:45 - Fri Jul 1, 2011
Server error during processing: ["web request failed",

{path,"/pools/default/saslBucketsStreaming"}

,

{type,error}

,

{what,badarg}

,
{trace,
[

{lists,member,["default",undefined]}

,

{menelaus_web,build_node_status,4}

,

{menelaus_web, '-build_nodes_info_fun/3-fun-0-',9}

,

{menelaus_web_buckets, '-handle_sasl_buckets_streaming/2-lc$^0/1-0-', 3},{menelaus_web_buckets, '-handle_sasl_buckets_streaming/2-lc$^0/1-0-', 3}

,

{menelaus_web_buckets, '-handle_sasl_buckets_streaming/2-fun-1-', 3}

,

{lists,map,2}

,

{menelaus_web_buckets, '-handle_sasl_buckets_streaming/2-fun-2-', 2}

]}]