After renaming sub-wiki name the old one is still displaying in URL

In “mother” wiki I just renamed the sub-wiki listed in wiki index. Changing name was successful, URL and whole wiky renamed.

Thing which I am talking about is smtng like “ghosting” of previous name of wiki which sometimes appear in some pages in URL browser area. I have been observing it for some time and my opinion is it could be some cache saved in browser of the user who “remembers” the previous link to the particual page and the wiki remembers all previous links - names to the particular wiki because of (I am just guessing) reverse accesibility? Is my assumption wrong? Can I clear this cache in XWIKI system?

Thank you