Using bare std::string instead of flyweight because it caused datarace in some computers

common/include/util.hpp

@@ -17,7 +17,8 @@
 
 namespace util
 {
-using String = boost::flyweights::flyweight<std::string,boost::flyweights::no_tracking>;
+//using String = boost::flyweights::flyweight<std::string,boost::flyweights::no_tracking>;
+using String = std::string;
 
 constexpr float float2longScale = 10000;