save&view does not take into account current URL

For some reasons save&view does not take into account current URL and always redirect to current wiki descriptor main alias.

In a multiwiki environment:

• access the main wiki using IP
• edit a page
• click save&view -> you are redirected to whatever is the main wiki main alias instead of keeping the current URL scheme like it is for pretty much everything else

Note that save&continue use the proper URL in its ajax request.