Indeed, that same section says it is duplicated, by itself.
The section is a couple SQL Statements, which are not duplicates.
But I think that is related to the Define a constant instead of duplicating this literal "my literal here" 8 times. issue I have reported here: Define a constant instead of duplicating this literal "SQL STATEMENT" n times - #2 by Colin
So I will ignore it for now, since there is literally no duplication, it even states it is duplicated by line-to-line, which lines are the exact lines that make the statements, there is no duplication (of an entire block or single lines) just duplicated literals.