memcapable causes memcached to assert

1) start up a fresh node with the default bucket
2) run memcapable against moxi
3) memcached asserts

From the logs:

Port server memcached on node 'ns_1@127.0.0.1' exited with status 134. Restarting. Messages: memcached: sqlite-strategies.hh:44: uint16_t SqliteStrategy::getDbShardIdForKey(const std::string&): Assertion `statements.size() > 0' failed.

From the core file:

Thread 1 (Thread 1666):
#0 0x00344402 in __kernel_vsyscall ()
#1 0x00b97df0 in raise () from /lib/libc.so.6
#2 0x00b99701 in abort () from /lib/libc.so.6
#3 0x00b9126b in __assert_fail () from /lib/libc.so.6
#4 0x0085d7db in EventuallyPersistentStore::queueDirty(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, queue_operation, long long) () from bin/ep_engine/ep.so
#5 0x0085e382 in EventuallyPersistentStore::set(Item const&, void const*, bool) () from bin/ep_engine/ep.so
#6 0x0087bbe1 in EventuallyPersistentEngine::store(void const*, void*, unsigned long long*, ENGINE_STORE_OPERATION, unsigned short) () from bin/ep_engine/ep.so
#7 0x0087c8a5 in ?? () from bin/ep_engine/ep.so
#8 0x00a65a32 in ?? () from ./bin/bucket_engine/bucket_engine.so