From 1b9db6d4a7d8ab9f3ada5d21f8f05c3c8bf3c2e2 Mon Sep 17 00:00:00 2001
From: Maria Matejka <mq@ucw.cz>
Date: Mon, 15 Jul 2019 12:03:47 +0200
Subject: [PATCH] Filter: Don't write out when re-evaluating filter for
 internal purposes.

---
 filter/f-inst.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/filter/f-inst.c b/filter/f-inst.c
index 685bd426..c0badeab 100644
--- a/filter/f-inst.c
+++ b/filter/f-inst.c
@@ -345,7 +345,7 @@
     FID_INTERPRET_BODY
 
 #define pv(i) fstk->vstk[fstk->vcnt - whati->count + (i)]
-    if (whati->count)
+    if (whati->count && !(fs->flags & FF_SILENT))
       for (uint i=0; i<whati->count; i++)
 	val_format(&(pv(i)), &fs->buf);
 #undef pv