Steps to reproduce

1. Create a virtual URI mapping that forwards towards a REST endpoint:

   class: info.magnolia.virtualuri.mapping.RegexpVirtualUriMapping
   fromUri: \/\.rest\/delivery\/test\/v1(.*)toUri: forward:/.rest/delivery/pages/v1$1 

1. Add parameters to an URL like this: http://localhost:8080/magnoliaAuthor/.rest/delivery/pages/v1/?@name=Page-A%7CPage-B
2. Perform the same request, but through an URL that gets forwarded, in this case: http://localhost:8080/magnoliaAuthor/.rest/delivery/test/v1/?@name=Page-A%7CPage-B

Expected results

Both queries work without issues and the encoding is kept untouched.

Actual results

The encoding is not handled properly on the second request, making the REST request fail.