[Bug]: Secondary information not rendered in Template Card about lovelace-mushroom HOT 1 OPEN

type: custom:mushroom-template-card
primary: |-
  {% if states(entity) == 'None' %}
    No radiators need heat at the moment
  {% else %}
    Radiators needing heat
  {% endif %}
secondary: '{{ states(entity) }}'
icon: mdi:radiator
entity: input_text.radiators_needing_heat
fill_container: false
multiline_secondary: true
tap_action:
  action: none
hold_action:
  action: none
double_tap_action:
  action: none
layout: horizontal
icon_color: |-
  {% if states(entity) == 'None' %}
    black
  {% else %}
    red
  {% endif %}