I'm experiencing this issue with MediaWiki 1.23.6.
First I update the Main Page with a link to a new article:
Then I click on that link (which is red because the article doesn't exist yet) and create the article.
Then I go back to the Main Page.
The link to
[[New Article]] still appears red instead of blue. MediaWiki doesn't detect that the article exists until I edit Main Page again.
It's not a browser cache issue. And I don't have any caching enabled in LocalSettings.php either. What's going on?
$wgMainCacheType = CACHE_NONE;