Using --set on server.nodeSelector does not work ?

Hello guys !

So I'm using helm Version:"v3.1.0" and I'm trying to deploy vault & consul via helm.
Pretty much all values that I want to override with --set seems to work but nodeSelector won't.

In my kubernetes I have different AutoScalingGroups, one is reserved for consul & vault.

So here's the error to my command, any hint ?

```
helm install --generate-name --debug --set server.nodeSelector.nodegroup="eks-asg-consul-vault" vault-helm
```

```
install.go:158: [debug] Original chart version: ""
install.go:175: [debug] CHART PATH: /vault-helm

client.go:98: [debug] creating 0 resource(s)
Error: no objects visited
helm.go:75: [debug] no objects visited
helm.sh/helm/v3/pkg/kube.init
/home/circleci/helm.sh/helm/pkg/kube/client.go:51
runtime.doInit
/usr/local/go/src/runtime/proc.go:5222
runtime.doInit
/usr/local/go/src/runtime/proc.go:5217
runtime.doInit
/usr/local/go/src/runtime/proc.go:5217
runtime.main
/usr/local/go/src/runtime/proc.go:190
runtime.goexit
/usr/local/go/src/runtime/asm_amd64.s:1357
```

I tried to format the argument in many different ways but never succeed.
I'm not very familiar with helm, been hitting my head on this one for a while now.
Could it be a bug or something ?

Thanks for helping out!
--jm

Start by reproducing the shown helm install command with the server.nodeSelector.nodegroup override and inspect the rendered chart output. Trace the server.nodeSelector values path through the chart templates; done means the override is accepted and the expected server resources are generated with the requested node selector.

Written by the indexing model from the issue text.