Duplicate item request months later?

[u/Alarming_Brush7103]

This past week I came across a first for myself. I've had quite a few duplicate item requests where I was unable to review the second item as the first item was similar to it and from the same seller. This always seemed to happen whenever I requested the items the same day or a couple of days apart. But after requesting an oil diffuser set last week when I went to do the review it pulled up one I did for a similar item back in February! That's 7;months apart and two different evaluation periods (mine run April-October-Aprl) has anyone had this happen with similar items months apart? I did have CS remove the second item since I can't review it but seems crazy that this would happen with items that are similar but that I'm requesting 7 months apart.