This is probably an easy question since I haven't seen a solution posted.  We are adding street segments and have a number of dynamic value expressions configured.  When we split a street, we do not want to trigger the expressions since the split rules will be overwritten and we will lose the existing street attributes.  When we add a new segment, we want the dynamic values expressions to be applied.  The create flag is set to true and the other fields set to false.  Any help would be appreciated.