Major Description
Today, when trying to look at the book page pages (that are versioned) through standard viewers, in order to obtain information about the pages (e.g. viewer=history, viewer=information, viewer=children, etc.) it is not possible to do so as the mechanism that redirects to current version's content kicks in and redirects to a sub page.
This issue is for restricting a little this redirection mechanism to allow to access some of these information, for power users that can type that URL.
More over, I think (to be re-checked) that the delete screen is also redirecting and it's impossible to see the delete progress. Other refactoring screens (rename, copy, etc.) should also be checked.