Prevent panics in v1alpha1 helpers.go
Prevent panics in v1alpha1 helpers.go

jetstack-experimental/cert-manager,jetstack/cert-manager,cert-manager/cert-manager,jetstack/cert-manager,cert-manager/cert-manager,jetstack/cert-manager,jetstack-experimental/cert-manager,jetstack-experimental/cert-manager,cert-manager/cert-manager