without proper locking.


sql/sp_head.cc:
  Added missing locking of LOCK_thread_count to place where ::query_id is 
  modified.
sql/sql_parse.cc:
  Added comment to the only place where we are modifying ::query_id
  without following locking protocol, to avoid mistakes in future.
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted