New images not pulled after switching to spec.valuesObject

[ro0NL]

Checklist:

• I've searched in the docs and FAQ for my answer: https://bit.ly/argocd-faq.
• I've included steps to reproduce the bug.
• I've pasted the output of argocd version.

Describe the bug

We are trying to migrate from values: | to valuesObject: as per https://argo-cd.readthedocs.io/en/stable/user-guide/helm/#values

When a new image is built the image updater shows following log:

helm template . --name-template some --namespace some --kube-version 1.27 \
--set-string apps.api.image.repository=some \
--set-string apps.api.image.tag=some <api versions removed> --include-crds` failed exit status 1:
Error: template: chart/file.yaml:22:17: executing \"chart/file.yaml\" at <$app.webserver.upstream>: nil pointer evaluating interface {}.upstream%0A%0A

Expected behavior

Expected is the new image being updated. However it seems the existing chart becomes incompatible when switching to valuesObject:, and im wondering how we should proceed.

Chart snippet (unchanged)

data:
  api.conf: |
    {{- with $app.webserver.upstream }}
    upstream backend {
      {{- . | nindent 6 }}
    }
    {{- end }}

Nested value (unchanged)

valuesObject: # values: |
    apps:
        api:
            webserver:
                upstream: |
                    multi
                    line

Version

argocd: v2.10.0+2175939
  BuildDate: 2024-02-06T14:47:59Z
  GitCommit: 2175939ed6156ddd743e60f427f7f48118c971bf
  GitTreeState: clean
  GoVersion: go1.21.6
  Compiler: gc
  Platform: linux/amd64
argocd-server: v2.10.4+f5d63a5
  BuildDate: 2024-03-18T08:09:23Z
  GitCommit: f5d63a5c77d2e804e51ef94bee3db441e0789d00
  GitTreeState: clean
  GoVersion: go1.21.3
  Compiler: gc
  Platform: linux/amd64
  Kustomize Version: v5.2.1 2023-10-19T20:13:51Z
  Helm Version: v3.14.3+gf03cc04
  Kubectl Version: v0.26.11
  Jsonnet Version: v0.20.0

[ro0NL]

Found the correct repo, it's a known bug; argoproj-labs/argocd-image-updater#692