mysqldump restore with specified databases wont set gtid

I have a MariaDB Master (called A) with binlog, and a MariaDB Slave (called B) to A for some specified databases.

Now I need to create another MariaDB Slave (called C) to A for some specified databases which different replicate from B.

I install MariaDB, and restore with backup from mysqldump with gtid and master-data flags for specified databases. (with{{ -D database -o database}})

After complete restoration and start the slave, it says slave_io_process error, can not get latest binlog.

I get into troubleshooting for this problem, and find there is no value in mysql.gtid_slave_pos.

So I need to login to A and get the gtid from binlog and set it in C.

But if I restore ALL database in C, there is value in mysql.gtid_slave_pos in C.

Why do the specified databases restore will not execute set global gtid_slave_pos in dumpfile?