Option wsrep_max_ws_rows is intended to limit the maximum number of rows
in a writeset. To enforce this limit, we increment THD::wsrep_affected_rows
on every INSERT, UPDATE or DELETE. The problem is that we do so even on
insertion to internal temporary tables used for SELECTs and such.
THD::wsrep_affected_rows is now incremented only for rows that are actually
replicated.
Signed-off-by: Sachin Setiya <sachinsetia1001@gmail.com>