Engine CONNECT incorrectly reads values from XML

When testing Engine CONNECT XML, I noticed that values have incorrect output if one of the elements is not present when the "Mulnode" option is used.

I create the table "xml_sample":

CREATE OR REPLACE TABLE xml_sample (

 Country_code CHAR(50) xpath='@code',

 Country_name CHAR(50) xpath='@name',

 City_code CHAR(50) xpath='City/@code',

 City_name CHAR(50) xpath='City/@name',

 City_population NUMBER(10) NULL `xpath`='City/@population' 

 ) ENGINE=CONNECT table_type=XML FILE_NAME='C:/XML/MariaDB/Sample_data.xml'

tabname='W' option_list='rownode=C,Expand=1,Mulnode=City,Limit=10';

In the Xml there is a parameter "population" which is missing in one of the lines. And the result shows that one line is missing, and even worse, that there is no line, not the one for which parameters are missing, but the "population" record is moved up and the first lines are output.
Files and illustration are attached.