Page one carrying a ?page=1 param and dupe-ing your category

Page one carrying a ?page=1 param and dupe-ing your category
Spotted /category and /category?page=1 both live, both 200, identical content. The 'first page' link in the paginator added the param. Now the category competes against a parametered clone of itself.

Fix:
— made page 1 of any sequence ALWAYS the clean, paramless URL
— removed the ?page=1 link entirely — page 1 is just /category
— canonicaled any stray param-1 URL to the clean version

Pagination should start at the bare URL. The ?page=N only kicks in from page 2. A page=1 param is a self-inflicted duplicate.

Watch your 'first' / 'previous' buttons — they're usually the culprit generating it.