memcached crash ( stored-value.hh:284:) when view merger is updating partition states and user tries to delete the bucket

user who tries out dp3 has reported this crash while using php sdk

[user:info] [2012-03-25 7:19:14] [ns_1@127.0.0.1:<0.1177.2>:ns_port_server:handle_info:96] Port server memcached on node 'ns_1@127.0.0.1' exited with status 134. Restarting. Messages: Trying to connect to mccouch: "localhost:11213"
Connected to mccouch: "localhost:11213"
memcached: stored-value.hh:284: size_t StoredValue::valLength(): Assertion `value->length() == sizeof(uval)' failed.
[couchdb:info] [2012-03-25 7:19:14] [ns_1@127.0.0.1:<0.26027.1>:couch_log:info:39] 192.168.1.3 - - GET /default/CONTENTTYPE-4108903eb89af12cffb58dbe57d77fd4?_=1332674353646 500
[ns_server:info] [2012-03-25 7:19:14] [ns_1@127.0.0.1:<0.1177.2>:ns_port_server:log:155] memcached<0.1177.2>: memcached: stored-value.hh:284: size_t StoredValue::valLength(): Assertion `value->length() == sizeof(uval)' failed.

[ns_server:info] [2012-03-25 7:19:14] [ns_1@127.0.0.1:<0.1176.2>:supervisor_cushion:handle_info:61] Cushion managed supervisor for memcached failed: {abnormal,