Regexp route broken in Rails 2.2.2?

Hi, just upgraded an app from Rails 2.1.0 to 2.2.2 and finding my routes
stopped working

URL which doesn’t match is:
http://blah/blog/auth/login

Route is:
map.connect ‘blog/:controller/:action/:id’, :requirements =>
{:controller => /(auth|asdf)/}

In fact, neither does this match:
map.connect ‘blog/:controller/:action/:id’, :requirements =>
{:controller => /(auth)/}

But this does:
map.connect ‘blog/:controller/:action/:id’, :requirements =>
{:controller => /auth/}

So the problem seems to be that “( )” syntax is breaking the regexp
parsing. Curiously though the regexp does work for link generation,
it’s only route recognition which breaks

Can anyone give me a quick workaround for this, quite a lot or routes to
alter otherwise…

Thanks

Ed W