From e89d81e318ee8873bc6b9ad71e07ea768a8276ee Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 20 Jun 2013 14:26:17 +0100
Subject: [PATCH] [btree] fix bug in earlier patch.  inc_children was always
 begin called.

---
 persistent-data/data-structures/btree.tcc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/persistent-data/data-structures/btree.tcc b/persistent-data/data-structures/btree.tcc
index 743a028..422d2b9 100644
--- a/persistent-data/data-structures/btree.tcc
+++ b/persistent-data/data-structures/btree.tcc
@@ -694,7 +694,8 @@ namespace persistent_data {
 
 		for (;;) {
 			inc = spine.step(block);
-			inc_children<ValueTraits>(spine, leaf_rc);
+			if (inc)
+				inc_children<ValueTraits>(spine, leaf_rc);
 
 			// patch up the parent to point to the new shadow
 			if (spine.has_parent()) {