libwallet_api: do not use fast-refresh on recovery

src/wallet/api/wallet.h

@@ -128,6 +128,10 @@ private:
     boost::mutex        m_refreshMutex2;
     boost::condition_variable m_refreshCV;
     boost::thread       m_refreshThread;
+    // flag indicating wallet is recovering from seed
+    // so it shouldn't be considered as new and pull blocks (slow-refresh)
+    // instead of pulling hashes (fast-refresh)
+    bool                m_recoveringFromSeed;
 };