Install issues with v3.0.0-beta.1

[marckhouzam]

What this PR does / why we need it:

I can no longer install charts with v3. Maybe I'm doing something wrong, or I'm running a different scenario?

The proposed fix makes sense to me as some new fields recently added had not been initialized.

Here's what I'm doing to trigger the problem:

# I start from an empty Helm Environment
> ls $HOME/Library/Caches/helm  $HOME/Library/Preferences/helm  $HOME/Library/helm
ls: /Users/marckhouzam/Library/Caches/helm: No such file or directory
ls: /Users/marckhouzam/Library/Preferences/helm: No such file or directory
ls: /Users/marckhouzam/Library/helm: No such file or directory

# Add a repo
> bin/helm repo add stable https://kubernetes-charts.storage.googleapis.com
"stable" has been added to your repositories

# Repo is there
> bin/helm repo list
NAME  	URL
stable	https://kubernetes-charts.storage.googleapis.com

# Correct directories have been modified
> ls $HOME/Library/Caches/helm  $HOME/Library/Preferences/helm  $HOME/Library/helm
ls: /Users/marckhouzam/Library/helm: No such file or directory
/Users/marckhouzam/Library/Caches/helm:
repository

/Users/marckhouzam/Library/Preferences/helm:
repositories.yaml

> bin/helm install nginx stable/nginx-ingress
Error: failed to download "stable/nginx-ingress" (hint: running `helm repo update` may help)

> bin/helm repo update
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "stable" chart repository
Update Complete. ⎈ Happy Helming!⎈

> bin/helm install nginx stable/nginx-ingress
Error: failed to download "stable/nginx-ingress" (hint: running `helm repo update` may help)

[FabianKramm]

Same as PR #6295, would be really great to see one of these PRs merged soon!

[hickeyma]

LGTM, thanks for the fix @marckhouzam.

[hickeyma]

Note: you can install charts from filesystem without this fix.