docs: public void init(BaseField field, BaseField fldDest, Object objValue, Converter convCheckMark)
      {
          super.init(field, fldDest, convCheckMark, null);
          m_bClearIfThisNull = false; // Must be for this to work
          this.setRespondsToMode(DBConstants.READ_MOVE, false);   // Usually, you only want to move a string on screen change
          this.setRespondsToMode(DBConstants.INIT_MOVE, false);   // Usually, you only want to move a string on screen change
          m_objValue = objValue;
      }