Don’t link to talks with fuzzy dates.

source/themes/opdavies/oliverdavies/_partials/talk-listing-item.html.twig

@@ -5,5 +5,11 @@
         {% else %}
             {{ talk.date|date('jS F') }}
         {% endif %}
-    {% endspaceless %}</strong> - {{ talk.location }} - <a href="{{ talk.url }}">{{ talk.title }}</a>
+    {% endspaceless %}</strong> - {{ talk.location }}
+    -
+    {% if talk.fuzzy_date %}
+        {{ talk.title }}
+    {% else %}
+        <a href="{{ talk.url }}">{{ talk.title }}</a>
+    {% endif %}
 </li>