From 2f59f5f2d5c30283b0079d437b2b3ff1b4340ea6 Mon Sep 17 00:00:00 2001
From: Christian Decker <decker.christian@gmail.com>
Date: Fri, 10 Jul 2020 16:16:42 +0200
Subject: [PATCH] paymod: Inherit exemptfee modifier data on retry

---
 plugins/libplugin-pay.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/plugins/libplugin-pay.c b/plugins/libplugin-pay.c
index 029838ba6..0fa9aee41 100644
--- a/plugins/libplugin-pay.c
+++ b/plugins/libplugin-pay.c
@@ -1645,9 +1645,13 @@ REGISTER_PAYMENT_MODIFIER(routehints, struct routehints_data *,
 
 static struct exemptfee_data *exemptfee_data_init(struct payment *p)
 {
-	struct exemptfee_data *d = tal(p, struct exemptfee_data);
-	d->amount = AMOUNT_MSAT(5000);
-	return d;
+	if (p->parent == NULL) {
+		struct exemptfee_data *d = tal(p, struct exemptfee_data);
+		d->amount = AMOUNT_MSAT(5000);
+		return d;
+	} else {
+		return payment_mod_exemptfee_get_data(p->parent);
+	}
 }
 
 static void exemptfee_cb(struct exemptfee_data *d, struct payment *p)