Adjust cache options

lib/api/helpers/caching.rb

@@ -40,7 +40,7 @@ module API
       # @param expires_in [ActiveSupport::Duration, Integer] an expiry time for the cache entry
       # @param presenter_args [Hash] keyword arguments to be passed to the entity
       # @return [Gitlab::Json::PrecompiledJson]
-      def present_cached(obj_or_collection, with:, cache_context: -> (_) { current_user.cache_key }, expires_in: DEFAULT_EXPIRY, **presenter_args)
+      def present_cached(obj_or_collection, with:, cache_context: -> (_) { current_user&.cache_key }, expires_in: DEFAULT_EXPIRY, **presenter_args)
         json =
           if obj_or_collection.is_a?(Enumerable)
             cached_collection(

lib/api/merge_requests.rb

@@ -202,7 +202,7 @@ module API
         options[:project] = user_project
 
         if Feature.enabled?(:api_caching_merge_requests, user_project, type: :development, default_enabled: :yaml)
-          present_cached merge_requests, **options
+          present_cached merge_requests, expires_in: 10.minutes, **options
         else
           present merge_requests, options
         end