This feature was implemented with MGNLDIFF-74. But there is problem with multisite environment.

The problem is that VersionDiffHtmlServlet#getVersionSource is generating the default language url (english) rather than the correct url for the locale - one that is prefixed with the locale - (just 'handle' instead of '/fr/handle').

This happens because i18nContentSupport.toI18NURI(NodeUtil.getPathIfPossible(Node)) is returning the wrong URL - and this is because the actual site is not set on the AggregationState and so AbstractI18nContentSupport.isLocaleSupported() returns false for French. Because French is indeed not in the Locale}}s collection for the {{default site!

Suggested solution

Put correct Site on the AggregationState in VersionDiffHTMLServlet.

To Reproduce

• In demo-features site, enable i18n
• Add an additional locale, fr. (This is important because the problem only shows up when the locale is something that is not present in Default site definition.)
• Edit Page /demo-features/content-templates/article, Edit the title of the "Page Header" component.
  • Make the english version 'Article EN 1', make the french version 'Article FR 1'.
• Publish the change & Go to the Inbox and Approve the workitem.
• Edit the page again
  • Make the english version 'Article EN 2'. make the french version 'Article FR 2'.
• Publish the change.
• Go to the inbox, double click on the workitem, you'll see links at the bottom to Compare for each language.
• You'll see that English works correctly, but that French shows the English changes too!