Fix fetch nested device with template will miss some devices

[Cpaulyz]

Description

Reproduce

--1. CREATE TEMPLATE
create device template t1 (temperature FLOAT encoding=RLE, status BOOLEAN encoding=PLAIN compression=SNAPPY);
show schema templates;
show device templates;
create database root.sg1;

--2. SET TEMPLATE
set device template t1 to root.sg1.d1;
show paths set schema template t1;
show paths set device template t1;

--3. ACTIVATE TEMPLATE
create timeseries of device template on root.sg1.d1;
show paths using device template t1;
show devices root.sg1.**;
show timeseries;
show timeseries root.sg1.**;

--4. INSERT DATA
insert into root.sg1.d1(time, temperature, status) values(1, 1, 1);
insert into root.sg1.d1(time, temperature, status) values(2, 2, 0), (3, 3, 1);
select * from root.sg1.d1;

--5. QUERY
insert into root.sg1.d1.GPS(time, latitude, longitude) values(1, 1, 1);
show timeseries root.sg1.d1.**;
select * from root.sg1.**;

After fix