From 610a3e170994dc3cd3ae0dc989a49e4e7c7fdadf Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Thu, 15 Mar 2012 04:47:32 -0500
Subject: Don't map_prices if price commodity matches source

Fixes #680
---
 src/pool.cc | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/pool.cc')

diff --git a/src/pool.cc b/src/pool.cc
index 0118a97d..d5494352 100644
--- a/src/pool.cc
+++ b/src/pool.cc
@@ -266,6 +266,9 @@ commodity_pool_t::exchange(const amount_t&             amount,
   amount_t per_unit_cost =
     (is_per_unit || amount.is_realzero()) ? cost.abs() : (cost / amount).abs();
 
+  if (! cost.has_commodity())
+    per_unit_cost.clear_commodity();
+
   DEBUG("commodity.prices.add", "exchange: per-unit-cost = " << per_unit_cost);
 
   // Do not record commodity exchanges where amount's commodity has a
-- 
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