the duplicate detection lets you group constraints but does not apply any logic to the grouping
in the above picture you can see the 2 options the first is a single constraint which correctly checks for duplication on that single field
the second is a group of fields, logically you would assume this is treated as a AND operator and that both fields combined need to be unique, this is not true each are treated as a single duplication check which makes the grouping pointless.
https://forum.cortezaproject.org/t/bug-module-deduplication-logic-failure/3107
the duplicate detection lets you group constraints but does not apply any logic to the grouping
in the above picture you can see the 2 options the first is a single constraint which correctly checks for duplication on that single field
the second is a group of fields, logically you would assume this is treated as a AND operator and that both fields combined need to be unique, this is not true each are treated as a single duplication check which makes the grouping pointless.
https://forum.cortezaproject.org/t/bug-module-deduplication-logic-failure/3107