Backport session fix

diff --git a/templates/confreg/session.html b/templates/confreg/session.html
index 21ef0a1208af8aa83ce0717ea988fee57b24a56d..639a6039aae0d66a7529968764877a84b28ddede 100644 (file)
--- a/templates/confreg/session.html
+++ b/templates/confreg/session.html
@@ -5,7 +5,13 @@
 {% block ogpdescription -%}<meta property="og:description" content="{{ session.title }}" />{%- endblock %}
 
 {% block pagetitle %}{{session.title}}{% endblock %}
-{% block pagesubtitle %}{{session.starttime|datetimeformat("%A, %B %d")}} at {{session.starttime|datetimeformat("%H:%M")}}&ndash;{{session.endtime|datetimeformat("%H:%M")}}{% endblock %}
+{% block pagesubtitle %}
+{%- if session.starttime and session.endtime -%}
+{{session.starttime|datetimeformat("%A, %B %d")}} at {{session.starttime|datetimeformat("%H:%M")}}&ndash;{{session.endtime|datetimeformat("%H:%M")}}
+{%- else -%}
+{{ dates }}
+{%- endif -%}
+{% endblock %}
 
 {% block pageintro %}