"isset" does not work inside ranges

[totemcaf]

The following template iterates over a range "entries" and inside each iteration checks if a value is set in the current iteration value:

# kubetpl:syntax:go-template

a-start: Here the YAML starts
{{- if isset "key" }}
msg: "Found value for key: {{ .key }}"
{{- else }}
error: "Key value is missing"
{{- end}}

an-output-entry:
{{ range $ig := .entries }}
  - the-name: {{ .name }}
    output: {{ .value }}
    {{- if isset "print" }}
    the-value-to-print: {{ .print }}
    {{- end }}
{{ end }}
z-end: The last entry

Sample values:

key: some value

entries:
  - name: one
    value: first value
    print: value to print
  - name: two
    value: the second
    print: another value
  - name: three
    value: the third

The actual result:

---
a-start: Here the YAML starts
an-output-entry:
- output: first value
  the-name: one
- output: the second
  the-name: two
- output: the third
  the-name: three
msg: 'Found value for key: some value'

The expected result:

---
a-start: Here the YAML starts
an-output-entry:
- output: first value
  the-name: one
  the-value-to-print: value to print
- output: the second
  the-name: two
  the-value-to-print: another value
- output: the third
  the-name: three
msg: 'Found value for key: some value'

The check {{- if isset "print" }} fails always inside the retries range.