Daemon: Guard against reporting "synchronized" too early

The added condition "hshd.current_height >= target" guards against
reporting "synchronized" too early in the special situation that the
very first peer sending us data is synced to a lower height than
ourselves.

src/cryptonote_protocol/cryptonote_protocol_handler.inl

@@ -346,7 +346,7 @@ namespace cryptonote
     if(m_core.have_block(hshd.top_id))
     {
       context.m_state = cryptonote_connection_context::state_normal;
-      if(is_inital && target == m_core.get_current_blockchain_height())
+      if(is_inital  && hshd.current_height >= target && target == m_core.get_current_blockchain_height())
         on_connection_synchronized();
       return true;
     }