update

diff --git a/doc/todo/dependency_types.mdwn b/doc/todo/dependency_types.mdwn
index 59ccc7591ecd92f625dfa93790dfccb92622df6b..7e940543c00aa248c018d4f6c30a5131162eec66 100644 (file)
--- a/doc/todo/dependency_types.mdwn
+++ b/doc/todo/dependency_types.mdwn
@@ -169,10 +169,11 @@ pagecounts much more efficient.
 * So, brokenlinks can fire whenever any links in any of the
   pages it's tracking change, or when pages are added or
   removed.
-
-TODO: How to determine if a pagespec is valid to be used with a links
-dependency? Use the same simple pagespecs that are valid for presence
-dependencies?
+* To determine if a pagespec is valid to be used with a links dependency,
+  use the same set that are valid for presence dependencies. But also
+  allow `backlinks()` to be used in it, since that matches pages
+  that the page links to, which is just what link dependencies are
+  triggered on.
 
 ----