UC-71 Fix redirect issue with encoded querystring

RFCR @lizlux 
Fixes issue found with the redirect where query string is not decoded before getting injected into the URL.

https://wikia-inc.atlassian.net/browse/UC-71?focusedCommentId=134010&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-134010