Merged r9759 to r9764.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.0-stable@9766 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/repository/darcs.rb

@@ -79,7 +79,7 @@ class Repository::Darcs < Repository
     return nil if patch_from.nil?
     patch_to = changesets.find_by_revision(rev_to) if rev_to
     if path.blank?
-      path = patch_from.changes.collect{|change| change.path}.join(' ')
+      path = patch_from.filechanges.collect{|change| change.path}.join(' ')
     end
     patch_from ? scm.diff(path, patch_from.scmid, patch_to ? patch_to.scmid : nil) : nil
   end