Histogram visualization crashes when using labels generated with liquid from templated filters

[boelefrits]

I receive the following chrome console error while trying to create a histogram with the viz-histogram-marketplace visualization:

Uncaught (in promise) Error: Expression parse error: ({"First
    
    "templated_filter_value_event_1"
    
  ": !isValid(datum["bin_step_15_fct_funnel_avg_days_first1_first2"]) || !isFinite(+datum["bin_step_15_fct_funnel_avg_days_first1_first2"]) ? "null" : format(datum["bin_step_15_fct_funnel_avg_days_first1_first2"], "") + " – " + format(datum["bin_step_15_fct_funnel_avg_days_first1_first2_end"], ""), "Count of Records": format(datum["__count"], "")})
    at l (marketplace-api.looker.com/viz-dist/histogram.js:1)
    at Xw (marketplace-api.looker.com/viz-dist/histogram.js:20)
    at bk (marketplace-api.looker.com/viz-dist/histogram.js:20)
    at mk (marketplace-api.looker.com/viz-dist/histogram.js:20)
    at gk (marketplace-api.looker.com/viz-dist/histogram.js:20)
    at AA (marketplace-api.looker.com/viz-dist/histogram.js:20)
    at marketplace-api.looker.com/viz-dist/histogram.js:20
    at Array.forEach (<anonymous>)
    at sD (marketplace-api.looker.com/viz-dist/histogram.js:20)
    at uD (marketplace-api.looker.com/viz-dist/histogram.js:20)

The reason for this is that the measure I am trying to show in the histogram, has a label of the following form:

  filter: event_1 {
    label: "1. Choose event 1"
    case_sensitive: yes
    suggest_dimension: eventname_suggestions.event_name_cleaned
    suggest_explore: eventname_suggestions
  }

measure: sum {
label: "
    First
    {% if fct_funnel.event_1._is_filtered %}
    {{ _filters['fct_funnel.event_1'] }}
    {% else %}
    event 1
    {% endif %}
    to first
    {% if fct_funnel.event_2._is_filtered %}
    {{ _filters['fct_funnel.event_2'] }}
    {% else %}
    event 2
    {% endif %}
    "
type: sum
}

If I remove the label, the visualization does work.

Any idea how to fix this?