Log Message:
-----------
Fix pool_init_session_context so that it set query_context to NULL.
Modified Files:
--------------
pgpool-II:
pool_session_context.c (r1.15 -> r1.16)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_session_context.c?r1=1.15&r2=1.16)