test: ensure nested arrays (opt.FacetFilters-like) are correctly URL-encoded (#488)
test: ensure nested arrays (opt.FacetFilters-like) are correctly URL-encoded (#488)

l4u/algoliasearch-client-go,l4u/algoliasearch-client-go,algolia/algoliasearch-client-go,algolia/algoliasearch-client-go