From 98550895c14615062ba0b03199a58144796829de Mon Sep 17 00:00:00 2001
From: Mark Wells <mark@freeside.biz>
Date: Sat, 24 Mar 2012 16:35:26 -0700
Subject: [PATCH] fix flat-rate discounts when charging zero months, #17043

---
 FS/FS/part_pkg/discount_Mixin.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/FS/FS/part_pkg/discount_Mixin.pm b/FS/FS/part_pkg/discount_Mixin.pm
index 335ff6d0f..1edf258d6 100644
--- a/FS/FS/part_pkg/discount_Mixin.pm
+++ b/FS/FS/part_pkg/discount_Mixin.pm
@@ -84,7 +84,9 @@ sub calc_discount {
     $amount += $discount->amount
         if $cust_pkg->pkgpart == $param->{'real_pkgpart'};
     $amount += sprintf('%.2f', $discount->percent * $br / 100 );
-    my $chg_months = $param->{'months'} || $cust_pkg->part_pkg->freq;
+    my $chg_months = defined($param->{'months'}) ?
+                      $param->{'months'} :
+                      $cust_pkg->part_pkg->freq;
 
     my $months = $discount->months
     ? min( $chg_months,
-- 
2.11.0