QLEN inconsistent results

Given the cluster of 3 nodes, shouldn't the QLEN return the same results regardless the node being asked? In my tests only original node returns proper queue length, but `GETJOB` on different node still works properly

```
$ redis-cli -h eu1-queue-3 -p 7712 addjob testqueue testjob 1000
D-54bdf6f9-2qZjI4HgYKs8vP0ZWSeAANbK-05a1

$ redis-cli -h eu1-queue-1 -p 7712 qlen testqueue
(integer) 0 # WHY?
$ redis-cli -h eu1-queue-2 -p 7712 qlen testqueue
(integer) 0
$ redis-cli -h eu1-queue-3 -p 7712 qlen testqueue
(integer) 1

$ redis-cli -h eu1-queue-1 -p 7712 getjob from testqueue
1) 1) "testqueue"
2) "D-54bdf6f9-2qZjI4HgYKs8vP0ZWSeAANbK-05a1"
3) "testjob"
```