[FIX] Skip process that requires login to logout

Getting self.tokens['crsf'] triggers a login when not already logged in.
Checks LoginStatus and only continue the steps if still logged in.

Bug: T326614
Change-Id: I50e49e9ea8dbf2ef29c7606b4cd318ac02f8c33c
---
M pywikibot/site/_apisite.py
1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/pywikibot/site/_apisite.py b/pywikibot/site/_apisite.py
index 340d82e..4924b60 100644
--- a/pywikibot/site/_apisite.py
+++ b/pywikibot/site/_apisite.py
@@ -471,10 +471,12 @@
         if self.is_oauth_token_available():
             pywikibot.warning('Using OAuth suppresses logout function')
 
-        req_params = {'action': 'logout', 'token': self.tokens['csrf']}
-        uirequest = self.simple_request(**req_params)
-        uirequest.submit()
-        self._loginstatus = login.LoginStatus.NOT_LOGGED_IN
+        # check if already logged out to avoid requiring logging in
+        if not self._loginstatus == login.LoginStatus.NOT_LOGGED_IN:
+            req_params = {'action': 'logout', 'token': self.tokens['csrf']}
+            uirequest = self.simple_request(**req_params)
+            uirequest.submit()
+            self._loginstatus = login.LoginStatus.NOT_LOGGED_IN
 
         # Reset tokens and user properties
         del self.userinfo

