Steps to reproduce:

Open “New repository” ( /projects/:project_name/repositories/new )¶

Click the Create button without making any changes.¶

Change SCM (e.g. "Subversion" to "Git")¶

==> The input form does not change at all. As below.

|Incorrect form for 'Git'|Correct form for 'Git'|
|!incorrect_git.png!|!correct_git.png!|

development.log:
There is an error "ActionController::RoutingError (No route matches [GET] "/projects/:project_name/repositories"):".

You can solve the problem by making the following changes.

diff --git a/app/helpers/repositories_helper.rb b/app/helpers/repositories_helper.rb
index 314c0b29b..435041b72 100644
--- a/app/helpers/repositories_helper.rb
+++ b/app/helpers/repositories_helper.rb
@@ -138,7 +138,7 @@ module RepositoriesHelper
     select_tag('repository_scm',
                options_for_select(scm_options, repository.class.name.demodulize),
                :disabled => (repository && !repository.new_record?),
-               :data => {:remote => true, :method => 'get'})
+               :data => {:remote => true, :method => 'get', :url => new_project_repository_path(repository.project)})
   end
 
   def with_leading_slash(path)