[Haml] Make form_for indent properly with Rails beta 3.

doc-src/HAML_CHANGELOG.md

@@ -3,6 +3,12 @@
 * Table of contents
 {:toc}
 
+## 2.2.24
+
+[Tagged on GitHub](http://github.com/nex3/haml/commit/2.2.24).
+
+* Make sure `form_for` blocks are properly indented under Rails 3.0.0.beta.3.
+
 ## 2.2.23
 
 [Tagged on GitHub](http://github.com/nex3/haml/commit/2.2.23).

lib/haml/helpers/action_view_mods.rb

@@ -156,9 +156,7 @@ module ActionView
         def form_for_with_haml(object_name, *args, &proc)
           if block_given? && is_haml?
             oldproc = proc
-            proc = haml_bind_proc do |*args|
-              with_tabs(1) {oldproc.call(*args)}
-            end
+            proc = proc {|*args| with_tabs(1) {oldproc.call(*args)}}
           end
           res = form_for_without_haml(object_name, *args, &proc)
           res << "\n" if block_given? && is_haml?