Allowing unauthenticated users to see scopes

app/templates/scopes.html

@@ -7,7 +7,8 @@
   <p class="muted">
     Every scope on record, with the accessories that fit it. Each part-type
     column lists matching parts; <span class="fit-badge fit-badge-exact">Exact</span>
-    is a confirmed fit, <span class="fit-badge fit-badge-possible">Possible</span> a candidate.
+    is a confirmed fit{% if not only_exact %}, <span class="fit-badge fit-badge-possible">Possible</span> a candidate{% endif %}.
+    {% if only_exact %}<a href="/login">Sign in</a> to also see unconfirmed candidate fits.{% endif %}
   </p>
 
   <div class="filter-bar">