WordPress: New extra menu items after upgrade to 4.5

wordpress-newitemsReally strange issue: after I’ve updated this blog to vers. 4.5, on a closer inspection about all the design, I’ve found that in the primary menu navigation I have gained some extra menu items.

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After some research I’ve found that to remove this extra items you have simply to get the admin page, and delete it in Appearance->Menu.

I hope this post can help someone else.