Support for blind passthrough in redis-namespace

Author: parikshit223933

lib/resque/failure/multiple_with_retry_suppression.rb

@@ -151,7 +151,7 @@ def retrying?
       def redis_key_exists?(key)
         if Resque.redis.respond_to?(:exists?)
           will_handle_namespaced_exists = Resque.redis.try(:namespace).blank? ||
-            Redis::Namespace::COMMANDS.include?(:exists?)
+            ::Redis::Namespace::COMMANDS.include?(:exists?)
           Resque.redis.exists?(will_handle_namespaced_exists ? key : "#{Resque.redis.namespace}:#{key}")
         else
           ![false, 0].include?(Resque.redis.exists(key) || false)