Fix substitutions print

aleksis/apps/chronos/templates/chronos/partials/subs/comment.html

-{% if el.title %}
-  <em>{{ el.title }}</em>
-{% elif el.comment %}
+{% if el.comment %}
   <em>{{ el.comment }}</em>
 {% endif %}

aleksis/apps/chronos/templates/chronos/partials/subs/subject.html

@@ -3,10 +3,9 @@
   {% trans "Supervision" %}
 {% elif not el.amends.subject and not el.subject %}
   {% if el.amends.title %}
-    <s>{{ el.amends.title }}</s>
-  {% endif %}
-  {% if el.title %}
-    <s>{{ el.title }}</s>
+    {{ el.amends.title }}
+  {% elif el.title %}
+    {{ el.title }}
   {% endif %}
 {% elif el.cancelled %}
   <s>{% include "chronos/partials/subject.html" with subject=el.amends.subject %}</s>