Possible since 222127418b. Reviewed-by: Kacper Michajłow <kasper93@gmail.com> Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
222127418b
Enable it only for side data types that don't allow more than one entry. Signed-off-by: James Almer <jamrial@gmail.com>
Additionally, add an API test to check that the no-duplicates addition works after duplicates have been inserted.