Log Message:
-----------
Clear ->tuning bit on connection close.
If tuning query fails, the bit can stay set,
thus creating always-failing connection slot.
Report and analyze by Jonah Harris.
Modified Files:
--------------
plproxy/src:
execute.c (r1.15 -> r1.16)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plproxy/plproxy/src/execute.c.diff?r1=1.15&r2=1.16)