Wrong redirection for some products

[CharlesNepote]

Describe the bug

https://world.openfoodfacts.org/cgi/search.pl?search_terms=35%25+Fruit+And+Fiber+Muesli&search_simple=1&action=process

=> found https://world.openfoodfacts.org/product/0000000031233/35-fruit-and-fiber-muesli-golden-temple

=> cliking on the link leads to https://world.openfoodfacts.org/product/00031233/super-chicken-spinach-quinoa-marks-and-spencer

There seem to have other errors. Eg. see this list: https://world.openfoodfacts.org/state/brands-to-be-completed/code/000000003xxxx

[stephanegigandet]

It's probably because we changed the normalization of barcodes at some point:

		# Remove 5 or 6 leading 0s for EAN8
		# 00000080050100 (from Ferrero)
		if ((length($code) eq 14) and ($code =~ /^000000/)) {
			$code = $';
		}
		if ((length($code) eq 13) and ($code =~ /^00000/)) {
			$code = $';
		}

codes that have only 5 digits that are non zeros are internal codes, and it's very likely that some of them will conflict with other products from other stores/brands.

we probably should remove most of them... those for instance:

[stephanegigandet]

Those are from an old import of usda-ndb-import in 2018.

[alexgarel]

see #7249 and #7248 which should bring a solution to that.