The fix includes a modified admin UI and now it's possible to create sitemaps for all defined hosts of a site. All host names should show up in a dropdown list on the admin page when you add a new sitemap.
You can install it easily with NuGet. The latest version is found on EPiServer NuGet feed:
Install-Package Geta.SEO.Sitemaps
Given you have this configuration for your site:
All you have to do is create a sitemap for all the defined host names and you should be fine:
Sample output from english sitemap:
Sample output from norwegian sitemap:
Sample output from swedish sitemap:
