silverstripe/sapphire — pull request #1049 by mateusz (2012-12-18 03:05:14+00:00)
Title: BUG SS has problems handling + in URLs. Filter them out.

+ has a special meaning in the URLs so overall it's a good idea to
strip them out. Otherwise they would need to appear in their ugly url
encoded form "%2B".

Refer: http://open.silverstripe.org/ticket/7929