diff -up ksh-20101201/src/cmd/ksh93/include/defs.h.filerace ksh-20101201/src/cmd/ksh93/include/defs.h
--- ksh-20101201/src/cmd/ksh93/include/defs.h.filerace	2010-11-03 21:04:52.000000000 +0100
+++ ksh-20101201/src/cmd/ksh93/include/defs.h	2010-12-06 16:09:05.823823786 +0100
@@ -162,6 +162,7 @@ struct shared
 	Namval_t	*last_table;	/* last table used in last nv_open  */ \
 	Namval_t	*prev_table;	/* previous table used in nv_open  */ \
 	Sfio_t		*outpool;	/* ouput stream pool */ \
+	pid_t           outpipepid; \
 	long		timeout;	/* read timeout */ \
 	short		curenv;		/* current subshell number */ \
 	short		jobenv;		/* subshell number for jobs */ \
diff -up ksh-20101201/src/cmd/ksh93/sh/io.c.filerace ksh-20101201/src/cmd/ksh93/sh/io.c
--- ksh-20101201/src/cmd/ksh93/sh/io.c.filerace	2010-12-02 16:39:41.000000000 +0100
+++ ksh-20101201/src/cmd/ksh93/sh/io.c	2010-12-06 16:07:57.424149190 +0100
@@ -1418,7 +1418,7 @@ int	sh_redirect(Shell_t *shp,struct iono
 			}
 			if(!np)
 			{
-				if(flag==0 || tname)
+				if(flag==0 || tname || (flag==1 && fn==1 && (shp->fdstatus[fn]&IONOSEEK) && shp->outpipepid && shp->outpipepid==getpid()))
 				{
 					if(fd==fn)
 					{
diff -up ksh-20101201/src/cmd/ksh93/sh/xec.c.filerace ksh-20101201/src/cmd/ksh93/sh/xec.c
--- ksh-20101201/src/cmd/ksh93/sh/xec.c.filerace	2010-12-02 21:56:45.000000000 +0100
+++ ksh-20101201/src/cmd/ksh93/sh/xec.c	2010-12-06 16:09:54.632932987 +0100
@@ -2947,6 +2947,7 @@ pid_t _sh_fork(Shell_t *shp,register pid
 #if !_std_malloc
 	vmtrace(-1);
 #endif
+	shp->outpipepid = ((flags&FPOU)?getpid():0);
 	/* This is the child process */
 	if(shp->trapnote&SH_SIGTERM)
 		sh_exit(SH_EXITSIG|SIGTERM);