Information schema queries return empty result set

For some reason following query returns empty result set in 10.3.14 and 10.3.15 version.

SELECT table_name,table_name, ordinal_position
FROM information_schema.table_constraints t
JOIN information_schema.key_column_usage k
USING(constraint_name,table_name)
WHERE t.constraint_type='PRIMARY KEY'
AND t.table_schema= 'demodb'
AND k.table_schema= 'demodb'

order by table_name,ordinal_position;

But following does work:

SELECT * FROM (SELECT t.table_name, k.column_name, ordinal_position
FROM information_schema.table_constraints t
JOIN information_schema.key_column_usage k
USING(constraint_name,table_name)
WHERE t.constraint_type='PRIMARY KEY'
AND t.table_schema= 'demodb'
AND k.table_schema= 'demodb') tmp

order by table_name,ordinal_position