auto_link in text_helper.rb doesn't handle some gmail URLS

gmail URLs (and increasingly other URLs as well) can have important information after an anchor, such as:

https://mail.google.com/mail/#search/%7Bis%3Aunread+is%3Astarred+is...
aft%7D/12272188ec71e0f4

auto_link does not love this URL, only autolinking the \w trailing the # and not everything after that next /, i.e., you get:

https://mail.google.com/mail/#search [linked]

/%7Bis%3Aunread+is%3Astarred+is%3Adraft%7D/12272188ec71e0f4 [plain text, not linked]

I noticed this in an older version of rails, but looking at git it seems that the regexp at issue is the same in both my older version and in current trunk.

Michael, my apologies if you're not actually responsible, but I saw in bug #1353 and others that you have touched/reviewed patches to this code, so thought you might be closest. Thanks.