Node Spec podLabels don't work if cluster spec podLabels are not defined

[owais]

The following spec will not add any labels to pods (bug)

apiVersion: "druid.apache.org/v1alpha1"
kind: "Druid"
metadata:
  name: tiny-cluster
spec:
  nodes:
    brokers:
      podLabels:
        label_a: yes

But the following will add both label_a and label_b (as expected)

apiVersion: "druid.apache.org/v1alpha1"
kind: "Druid"
metadata:
  name: tiny-cluster
spec:
  podLabels:
    label_a: yes
  nodes:
    brokers:
      podLabels:
        label_b: yes

[AdheipSingh]

thanks for taking this a notice.