(3.23 master, 4.0 slave. 
Slave loss temp tables everytime FLUSH LOGS on master). 
This fix is less bad than the bug, it will cause a problem only maybe
if the master dies the hard way (I say maybe because I could not
cause a problem, and I don't see how it could happen).


sql/log_event.cc:
  fix for #254
  (3.23 master, 4.0 slave. 
  Slave loss temp tables everytime FLUSH LOGS on master). 
  This fix is less bad than the bug, it will cause a problem only maybe
  if the master dies the hard way. (I say maybe because I could not
  cause a problem, and I don't see how it could happen).