[selectors] Add issue about file/folder with same name.

Author: tabatkins

selectors/Overview.html

@@ -2800,6 +2800,14 @@ <h3 id=local-pseudo><span class=secno>8.3. </span> The local link
    Style 5 apply to Link 4.) (Relatedly, should a link from a document at an
    opaque URL to itself also match?)
 
+  <p class=issue> If you're on a server architecture that allows both files
+   and folders of the same name at a given level, so that
+   "http://example.com/2011" and "http://example.com/2011/" are completely
+   different, it seems weird that (as currently specced), they'd both match
+   the document's url to 1 path level, even though they don't actually share
+   any path segments on your server. Should check with Anne and make sure we
+   match the URL spec.
+
   <h3 id=the-target-pseudo><span class=secno>8.4. </span> The target
    pseudo-class <a href="#target-pseudo"><code>:target</code></a></h3>
 

selectors/Overview.src.html

@@ -1881,6 +1881,14 @@ <h3 id="local-pseudo">
     to itself? (This would make Style 5 apply to Link 4.)
     (Relatedly, should a link from a document at an opaque URL to itself also match?)
 
+  <p class='issue'>
+    If you're on a server architecture that allows both files and folders of the same name at a given level,
+    so that "http://example.com/2011" and "http://example.com/2011/" are completely different,
+    it seems weird that (as currently specced),
+    they'd both match the document's url to 1 path level,
+    even though they don't actually share any path segments on your server.
+    Should check with Anne and make sure we match the URL spec.
+
 
 <h3 id="the-target-pseudo">
 The target pseudo-class <code>:target</code></h3>