From cb63bbef865305a31827cd496350a0e8c4a3b078 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Fri, 15 Sep 2017 12:12:47 +0200
Subject: [PATCH] trie: copy secKeyCache when copying secure trie

---
 trie/secure_trie.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/trie/secure_trie.go b/trie/secure_trie.go
index 20c303f31c..100ccf57b3 100644
--- a/trie/secure_trie.go
+++ b/trie/secure_trie.go
@@ -158,6 +158,13 @@ func (t *SecureTrie) Root() []byte {
 
 func (t *SecureTrie) Copy() *SecureTrie {
 	cpy := *t
+	if len(t.secKeyCache) > 0 {
+		cpy.secKeyCache = make(map[string][]byte)
+		for k, v := range t.secKeyCache {
+			cpy.secKeyCache[k] = v
+		}
+		cpy.secKeyCacheOwner = &cpy
+	}
 	return &cpy
 }