From 3beea4fb9430b3207a9fc0020ccf8ca94dfea39d Mon Sep 17 00:00:00 2001
From: Adrien Delorme <adrien.delorme@icloud.com>
Date: Tue, 17 Mar 2020 11:59:54 +0100
Subject: [PATCH] NameValues.CopyOn: don't instanciate a receiving map if there
 is nothing to copy over

---
 hcl2template/types.kv.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hcl2template/types.kv.go b/hcl2template/types.kv.go
index faf8a2a27..cd1e63007 100644
--- a/hcl2template/types.kv.go
+++ b/hcl2template/types.kv.go
@@ -10,6 +10,9 @@ type NameValue struct {
 type NameValues []NameValue
 
 func (kvs NameValues) CopyOn(to *map[string]string) []error {
+	if len(kvs) == 0 {
+		return nil
+	}
 	if *to == nil {
 		*to = map[string]string{}
 	}