Hi Denis, Thank you for your reply! We found out the reason is a document called XWiki.XWikiServerXwiki whose title is empty. During the XWiki initialization in 8.4.4 version(the version we use), setDocumentFields <https://github.com/xwiki/xwiki-platform/blob/stable-9.1.x/xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/doc/AbstractMandatoryDocumentInitializer.java#L183-L186> will mark the document as needsUpdate if the title is blank(It only has StringUtils.isBlank(document.getTitle()) in if statement for 8.4.4 version). So it will then remove the security cache and cause the issue.
For the fix, we plan to add a title for XWiki.XWikiServerXwiki page, which solved the issue in beta testing. Right now we didn't see any problem except it will remove the security caches once more. Do you think it's safe doing that? Thanks! -- Sent from: http://xwiki.475771.n2.nabble.com/XWiki-Dev-f475773.html
