Hide text blocks in question answer views

src/pretix/base/models/orders.py

@@ -1628,14 +1628,17 @@ class AbstractPosition(RoundingCorrectionMixin, models.Model):
 
         self.questions = []
         for qc in children:
-            if qc.user_datafield_id and qc.user_datafield_id in self.answer_cache:
-                qc.answer = self.answer_cache[qc.user_datafield_id]
+            if qc.user_datafield_id:
+                if qc.user_datafield_id in self.answer_cache:
+                    qc.answer = self.answer_cache[qc.user_datafield_id]
+                else:
+                    qc.answer = ""
                 #qc.answer.question = qc  # cache object
             elif qc.system_datafield:
                 qc.answer = self.get_system_answer(qc.system_datafield)
                 #qc.answer.question = qc  # cache object
             else:
-                qc.answer = ""
+                continue
             if not qc.dependency_question_id or qc_is_visible(qc.dependency_question_id, qc.dependency_values):
                 self.questions.append(qc)
 

src/pretix/presale/templates/pretixpresale/event/fragment_question_answer.html

@@ -1,7 +1,8 @@
 {% load safelink %}
 {% load i18n %}
 {% load rich_text %}
-{% if answer %}
+{% if not answer and not question %}
+{% elif answer %}
     {% if answer.file %}
         <span class="fa fa-file" aria-hidden="true"></span>
         <a href="{{ answer.frontend_file_url }}?token={% answer_token request answer %}">