scm: mercurial: fix r4686 setup mercurial test repository (#7272).

If redmine top directory has .hg, "hg clone" synchronizes all revisions to test repository.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4687 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/tasks/testing.rake

@@ -44,7 +44,8 @@ namespace :test do
       task :mercurial => :create_dir do
         repo_path = "tmp/test/mercurial_repository"
         bundle_path = "test/fixtures/repositories/mercurial_repository.hg"
-        system "hg clone -U #{bundle_path} #{repo_path}"
+        system "hg init #{repo_path}"
+        system "hg -R #{repo_path} pull #{bundle_path}"
       end
       
       (supported_scms - [:subversion, :mercurial]).each do |scm|