Fix null cable termination representation

netbox/templates/dcim/inc/cable_termination.html

@@ -1,4 +1,5 @@
 {% load helpers %}
+{% if terminations.0 %}
   <table class="table table-hover panel-body attr-table">
     {% if terminations.0.device %}
       {# Device component #}
@@ -40,7 +41,7 @@
           {% endfor %}
         </td>
       </tr>
-  {% else %}
+    {% elif terminations.0.circuit %}
       {# Circuit termination #}
       <tr>
         <td>Provider</td>
@@ -56,3 +57,6 @@
       </tr>
     {% endif %}
   </table>
+{% else %}
+  <span class="text-muted">No termination</span>
+{% endif %}