Originally Posted by
chx1975
Interesting. That does also explain my experience - I just checked 2 products I've received like this recently, and both have what I presume are "Amazon barcodes" on them (ie, a different barcode covering the real product barcode) which seems to avoid this process.
Unfortunately there doesn't appear to be a way to know in advance if a seller is using the "co-mingled" stock, or their own stock with custom barcodes.