Fix filter_param

Author: jeremystretch

netbox/templates/inc/panels/related_objects.html

@@ -7,7 +7,7 @@ <h2 class="card-header">{% trans "Related Objects" %}</h2>
     {% for related_object_count in related_models %}
       {% with viewname=related_object_count.queryset.model|validated_viewname:"list" %}
         {% if viewname is not None %}
-          <a href="{% url viewname %}?{{ filter_param }}={{ object.pk }}" class="list-group-item list-group-item-action d-flex justify-content-between">
+          <a href="{% url viewname %}?{{ related_object_count.filter_param }}={{ object.pk }}" class="list-group-item list-group-item-action d-flex justify-content-between">
             {{ related_object_count.name }}
             {% with count=related_object_count.queryset.count %}
               {% if count %}