Products type doesn't use 'category' in canonical name

[veryeli]

Referenced in this pr.
Replication:

Check out the above referenced PR
cp src/scripts/data-demo/products.csv to src/scripts/data-import/products.csv
add a row that duplicates another one except for the category
Confirm the error "this didn't return on Product - it returned (2)
Fix and write a test.