message: HashUtils: updated HashMapStringKey ctor
diff: @@ -166,8 +166,8 @@ public:
  }
  // Make this constructor explicit to avoid unintentional string copies
  - explicit HashMapStringKey(const String& Str) :
  - HashMapStringKey{Str.c_str(), true}
  + explicit HashMapStringKey(const String& Str, bool bMakeCopy = true) :
  + HashMapStringKey{Str.c_str(), bMakeCopy}
  {
  }
  