Make custom 'current' board links work on unlisted boards.

src/General/Header.coffee

@@ -207,14 +207,22 @@ Header =
         g.BOARD.ID
       else
         t.match(/^[^-]+/)[0]
-      for a in as
+
-        if a.textContent is boardID
+      for aOrig in as
-          a = a.cloneNode true
+        if aOrig.textContent is boardID
+          a = aOrig.cloneNode true
+      if !a
+        if /^current/.test t
+          a = $.el 'a',
+            href: "/#{boardID}/"
+            textContent: boardID
+        else
+          return $.tn t
 
       a.textContent = if /-title/.test(t) or /-replace/.test(t) and $.hasClass a, 'current'
-            a.title
+        a.title or a.textContent
       else if /-full/.test t
-            "/#{boardID}/ - #{a.title}"
+        "/#{boardID}/" + (if a.title then " - #{a.title}" else '')
       else if text
         text
       else
@@ -239,7 +247,7 @@ Header =
 
       $.addClass a, 'navSmall' if boardID is '@'
       return a
-      $.tn t
+
     $.add list, nodes
     $.ready CatalogLinks.initBoardList