members/freizeit: fix wrong id in url resolve

jdav_web/templates/admin/members/freizeit/change_form_object_tools.html

@@ -4,21 +4,21 @@
 {% block object-tools-items %}
 
 <li>
-    <form method="post" action="{% url 'admin:members_freizeit_action' original.statement.pk %}">
+    <form method="post" action="{% url 'admin:members_freizeit_action' original.pk %}">
         {% csrf_token %}
         <input type="submit" name="crisis_intervention_list" value="{% trans 'Generate crisis intervention list' %}">
     </form>
 </li>
 
 <li>
-    <form method="post" action="{% url 'admin:members_freizeit_action' original.statement.pk %}">
+    <form method="post" action="{% url 'admin:members_freizeit_action' original.pk %}">
         {% csrf_token %}
         <input type="submit" name="notes_list" value="{% trans 'Generate overview' %}">
     </form>
 </li>
 
 <li>
-    <form method="post" action="{% url 'admin:members_freizeit_action' original.statement.pk %}">
+    <form method="post" action="{% url 'admin:members_freizeit_action' original.pk %}">
         {% csrf_token %}
         <input type="submit" name="seminar_report" value="{% trans 'Generate seminar report' %}">
     </form>