GitLab install results in incompatible types error with Helm 2.15.0-rc1

Summary

When installing the gitlab chart with helm v2.15.0-rc.1, it will return an incompatible types error.

Steps to reproduce

helm install --dry-run --tiller-namespace cluster --name gitlab gitlab/gitlab

Current behavior

It will returns an error (shown in the log)

Expected behavior

Installed gitlab chart

Versions

• Chart: 2.3.7
• Platform:
  • Cloud: On-Premise
  • Self-hosted: Debian
• Kubernetes: "v1.16.1
  • Client:"v1.16.1
  • Server:"v1.16.1
• Helm: v2.15.0-rc.1
  • Client:v2.15.0-rc.1
  • Server:v2.15.0-rc.1

Relevant logs

Error: render error in "gitlab/charts/nginx-ingress/templates/default-backend-poddisruptionbudget.yaml": template: gitlab/charts/nginx-ingress/templates/default-backend-poddisruptionbudget.yaml:1:28: executing "gitlab/charts/nginx-ingress/templates/default-backend-poddisruptionbudget.yaml" at <gt .Values.defaultBackend.replicaCount 1.0>: error calling gt: incompatible types for comparison