Bug #20843 tests fails randomly with assertion in completeClusterFailed

- flush gci needs to be reset on disconnect as cluster may reconnect after --initial with a smaller gci


storage/ndb/src/ndbapi/NdbEventOperationImpl.cpp:
  Bug #20843 tests fails randomly with assertion in completeClusterFailed
  reenabled test

mysql-test/t/disabled.def

@@ -18,7 +18,6 @@
 #im_life_cycle             : Bug#20368 2006-06-10 alik    im_life_cycle test fails
 ndb_autodiscover         : BUG#18952 2006-02-16 jmiller Needs to be fixed w.r.t binlog
 ndb_autodiscover2        : BUG#18952 2006-02-16 jmiller Needs to be fixed w.r.t binlog
-ndb_autodiscover3        : BUG#20872 2006-07-05 tomas ndb_autodiscover3 fails randomly
 ndb_load                 : BUG#17233 2006-05-04 tomas failed load data from infile causes mysqld dbug_assert, binlog not flushed
 partition_03ndb          : BUG#16385 2006-03-24 mikael Partitions: crash when updating a range partitioned NDB table
 ps_7ndb                  : BUG#18950 2006-02-16 jmiller create table like does not obtain LOCK_open

storage/ndb/src/ndbapi/NdbEventOperationImpl.cpp

@@ -1658,6 +1658,10 @@ NdbEventBuffer::completeClusterFailed()
   data.logType = SubTableData::LOG;
   data.gci = m_latestGCI + 1;
   
+#ifdef VM_TRACE
+  m_flush_gci = 0;
+#endif
+
   /**
    * Insert this event for each operation
    */