Index: trac/versioncontrol/web_ui/changeset.py
===================================================================
--- trac/versioncontrol/web_ui/changeset.py     (revision 2536)
+++ trac/versioncontrol/web_ui/changeset.py     (working copy)
@@ -182,10 +182,10 @@
                 info['rev.old'] = base_rev
                 info['browser_href.old'] = self.env.href.browser(base_path,
                                                                  rev=base_rev)
-            if path:
-                info['path.new'] = path
-                info['rev.new'] = chgset.rev
-                info['browser_href.new'] = self.env.href.browser(path,
+            path = path or "/"
+            info['path.new'] = path
+            info['rev.new'] = chgset.rev
+            info['browser_href.new'] = self.env.href.browser(path,
                                                                  rev=chgset.rev)
             if change in (Changeset.COPY, Changeset.EDIT, Changeset.MOVE):
                 edits.append((idx, path, kind, base_path, base_rev))