Running into "array_merge(): Argument #2 is not an array" on re-render

Describe the bug

Trying to use Sprig with the mailchimp-subscribe plugin.

Expected behaviour

The submission works but I think when Sprig tries to re-render it hits an error.

Screenshots

Versions

• Plugin version: 1.0.0-beta.13
• Craft version: 3.5.8

Here is what our component looks like:

{% set subscribeResponse = 
  mailchimpSubscribe is defined
  and mailchimpSubscribe.action == 'subscribe'
  ? mailchimpSubscribe : null %}

{% if subscribeResponse and subscribeResponse.success %}
  <p>You’ve been subscribed!</button>
{% else %}
  <form
    class="newsletter-form"
    sprig
    s-method="post"
    s-action="mailchimp-subscribe/audience/subscribe">
    {{ csrfInput() }}

    {% if subscribeResponse and not subscribeResponse.success %}
      <p>An error occured: {{ subscribeResponse.message }}</p>
    {% endif %}

    <label for="first_name">First Name</label>
    <input
      type="text"
      name="merge_fields[FNAME]"
      placeholder="First Name"
      {% if subscribeResponse and not subscribeResponse.success %}value="{{ subscribeResponse.values.FNAME ?? '' }}"{% endif %}
      />

    <label for="last_name">Last Name</label>
    <input
      type="text"
      name="merge_fields[LNAME]"
      placeholder="Last Name"
      {% if subscribeResponse and not subscribeResponse.success %}value="{{ subscribeResponse.values.LNAME ?? '' }}"{% endif %}
      />

    <label for="email"{% if subscribeResponse and subscribeResponse.errorCode=='1000' %} class="error"{% endif %}>Email:</label>
    <input
      id="email"
      type="text"
      name="email"
      placeholder="Email"
      {% if subscribeResponse and not subscribeResponse.success %}value="{{ subscribeResponse.values.email ?? '' }}"{% endif %}
      required
      />

    <button type="submit" class="btn">
      Join the Newsletter!¡
    </button>
  </form>
{% endif %}

[codyjames]

Seems to be working just great. Thanks for your fast response time on this!

[codyjames]

Great, I’ll try that out! Sorry I couldn’t be more helpful in debugging this.