It is not possible to logout from mobile wiki via Special::UserLogout page
##Reproduction steps
1. Login to Wikipedia
2. Switch To mobile view
3. Go to LogoutPage (https://en.m.wikipedia.org/wiki/Special:UserLogout)
4. Click the `continue to the log out page` link
Expected result: user gets logged out
Current result: MediaWiki UserLogout page shows an error "Log out failed due to session error. Please try again."
##Developer notes
This happens when the link to the Special::UserLogout page doesn't contain the `logoutToken`, then the Mobile Wikipedia shows an intermediate step - it asks for confirmation.
The `continue to the log out page` link points to the desktop (https://en.wikipedia.org/wiki/Special:UserLogout) UserLogout page, but user is on mobile domain. Most probably because of that
the token is invalid