unexpected error when task is not found in Redis

[hurngchunlee]

Hello,

When a task is not found in Redis, it returns an error with message cannot cast id: Attribute error.

Looking into the code, I see there is actually a check to tell whether the task is not found in Redis:

bokchoy/queue.go

Line 228 in 0421bea

if results == nil {

But I think that check will always be false because of

bokchoy/broker_redis.go

Line 325 in 0421bea

results := make(map[string]interface{})