When gtid_strict_mode = ON an attempt to SET @@global.gtid_slave_pos to a value
not containing gtid domains from the slave's gtid_binlog_pos is reacted with an error, like
The error message itself makes clear that the error is mere potential and there's no issue
when MASTER_GTID_POS = SLAVE_POS will be specified later.
The error issuing there should wait until MASTER_GTID_POS value gets known.