We introduced the concept of certain "content item groups" that are always opened in the same Studio tab. For example. content items that are localized variants of each other (they have the same transitive master content) are now always opened in the same tab. It is no longer possible to open such variant-related content items in different tabs.

As a consequence, the whole procedure of opening content items in the Studio has become asynchronous. So for those cases, where you currently expect that a content is immediately opened in a new tab once you use one of the methods from below, you now have to await the corresponding Promise.

The methods that are affected, are all the methods from the WorkAreaTabManager and the ContentTabManager that open content items or entities. They now return a Promise.

(CMS-28797)