Wallet: Require usage of new CAddressBookData::setLabel to change label

src/wallet/wallet.cpp

@@ -3193,7 +3193,7 @@ bool CWallet::SetAddressBookWithDB(WalletBatch& batch, const CTxDestination& add
         LOCK(cs_wallet);
         std::map<CTxDestination, CAddressBookData>::iterator mi = m_address_book.find(address);
         fUpdated = mi != m_address_book.end();
-        m_address_book[address].name = strName;
+        m_address_book[address].SetLabel(strName);
         if (!strPurpose.empty()) /* update purpose only if requested */
             m_address_book[address].purpose = strPurpose;
     }

src/wallet/wallet.h

@@ -181,14 +181,20 @@ public:
 /** Address book data */
 class CAddressBookData
 {
+private:
+    std::string m_label;
 public:
-    std::string name;
+    const std::string& name;
     std::string purpose;
 
-    CAddressBookData() : purpose("unknown") {}
+    CAddressBookData() : name(m_label), purpose("unknown") {}
 
     typedef std::map<std::string, std::string> StringMap;
     StringMap destdata;
+
+    void SetLabel(const std::string& label) {
+        m_label = label;
+    }
 };
 
 struct CRecipient

src/wallet/walletdb.cpp

@@ -206,7 +206,9 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
         if (strType == DBKeys::NAME) {
             std::string strAddress;
             ssKey >> strAddress;
-            ssValue >> pwallet->m_address_book[DecodeDestination(strAddress)].name;
+            std::string label;
+            ssValue >> label;
+            pwallet->m_address_book[DecodeDestination(strAddress)].SetLabel(label);
         } else if (strType == DBKeys::PURPOSE) {
             std::string strAddress;
             ssKey >> strAddress;