Merge pull request #3438 from 10up/fix/autosuggest-requests

Use only the body to build the cache key

includes/classes/Feature/Autosuggest/Autosuggest.php

@@ -628,7 +628,7 @@ public function intercept_search_request( $response, $query = [], $args = [], $f
 		// But only fire this if we have object caching as otherwise this comes with a performance penalty.
 		// If we do not have object caching we cache only one value for 5 minutes in a transient.
 		if ( wp_using_ext_object_cache() ) {
-			$cache_key = md5( wp_json_encode( $query['url'] ) . wp_json_encode( $args ) );
+			$cache_key = md5( wp_json_encode( $query['url'] ) . wp_json_encode( $args['body'] ) );
 			$request   = wp_cache_get( $cache_key, 'ep_autosuggest' );
 			if ( false === $request ) {
 				$request = wp_remote_request( $query['url'], $args );