Last modified: 2012-12-31 11:33:56 UTC
Assume I'm visiting http://en.wikipedia.org/wiki/This_page_does_not_exist_31415926 , the logging-in link is http://en.wikipedia.org/w/index.php?title=Special:UserLogin&returnto=This_page_does_not_exist_31415926 and after logging the returning link points to https://en.wikipedia.org/w/index.php?title=This_page_does_not_exist_31415926&action=edit&redlink=1 which shows a different interface than http://en.wikipedia.org/wiki/This_page_does_not_exist_31415926 .
This is a good shortcut, it's an incentive to create it. If someone is on a non existent page and logs in from this page, there is more chance it's because he wants to create the page or check the deletion log (which appears in edit mode), than go to another page after. In the last case, the fact he's been offered to edit the page he were on doesn't add any other step to quit the current page. In the first cases, he is exactly where he wanted. So I vote to not fix this situation and document this behavior as feature instead.