Do not test client flags against TTY_FREEZE bit, reported by Tom Ryder.

Author: nicm

tty.c

@@ -663,7 +663,9 @@ tty_write(
 		c = ARRAY_ITEM(&clients, i);
 		if (c == NULL || c->session == NULL || c->tty.term == NULL)
 			continue;
-		if (c->flags & (CLIENT_SUSPENDED|TTY_FREEZE))
+		if (c->flags & CLIENT_SUSPENDED)
+			continue;
+		if (c->tty.flags & TTY_FREEZE)
 			continue;
 		if (c->session->curw->window != wp->window)
 			continue;