Fix return value of fetch schmea with incorrect template info

[Cpaulyz]

Description

Reproduce

create device template t1 aligned (attr BOOLEAN, fuel_state DOUBLE, current_load INT32, status INT32);
create database root.template;
set device template t1 to root.template;
create timeseries using device template on root.template.d1;
insert into root.template.d1(time,status) aligned values(1,1);

then

select status from root.template.d1 where status <= 1 align by device;

return value of fetch schema should include hasNormalTimeSeries=false because all time series is template series