I have some pages in my wiki in the Orphaned Pages list that show up as if the linked page doesn't exist.
If I search for the page in the search bar I get a result. But rather than going to the page itself it just shows the page in the Page title matches, where they appear to be active links, but if you click them you don't go to the page., but a create page instead.
When hovering over the page in the Page title matches I see that instead of underscore it sometimes has %C2%A0 or %A0 in the link.
This made me look up the page in the database where I can see that instead of underscore those particular pages have a blank space instead of the underscore it is supposed to have.
How do I fix that so that the space is changed to an underscore in the database?
MediaWiki version 1.26.3
PHP version 5.6.39 (cgi-fcgi)
MySQL version ? - Not sure where to check for the version number
Btw, this problem has existed throughout the last many updates of the wiki. Only just figured out the problem in the database names.