Duplicate pages with name "codes"
The page with URL /coupon/codes
was added in 5d385f5b7bf8a48005524cf96e87f97a3213859a
and uses /codes.php
file with codes.tpl
template file
The page with URL search/coupons/type:simple/
was renamed from coupon_codes
to just codes
in a5c0dab339d4dc9634efa85b75e52ba01398c069