Fix digesting templates with mixed formats

actionview/lib/action_view/digestor.rb

@@ -45,11 +45,9 @@ def logger
       # Create a dependency tree for template named +name+.
       def tree(name, finder, partial = false, seen = {})
         logical_name = name.gsub(%r|/_|, "/")
+        finder.formats = [finder.rendered_format] if finder.rendered_format
 
-        options = {}
-        options[:formats] = [finder.rendered_format] if finder.rendered_format
-
-        if template = finder.disable_cache { finder.find_all(logical_name, [], partial, [], options).first }
+        if template = finder.disable_cache { finder.find_all(logical_name, [], partial, []).first }
           finder.rendered_format ||= template.formats.first
 
           if node = seen[template.identifier] # handle cycles in the tree

actionview/test/fixtures/digestor/comments/show.js.erb

+alert("<%=j render("comments/comment") %>")

actionview/test/template/digestor_test.rb

@@ -160,6 +160,18 @@ def test_template_formats_of_dependencies_with_same_logical_name_and_different_r
     assert_equal [:html], tree_template_formats("messages/show").uniq
   end
 
+  def test_template_dependencies_with_fallback_from_js_to_html_format
+    finder.rendered_format = :js
+    assert_equal ["comments/comment"], dependencies("comments/show")
+  end
+
+  def test_template_digest_with_fallback_from_js_to_html_format
+    finder.rendered_format = :js
+    assert_digest_difference("comments/show") do
+      change_template("comments/_comment")
+    end
+  end
+
   def test_recursion_in_renders
     assert digest("level/recursion") # assert recursion is possible
     assert_not_nil digest("level/recursion") # assert digest is stored