Workbench Block incomplete when using DS Extra "View mode per node" feature

Was troubleshooting an issue related to Display Suite and Context and noticed that a similar issue was coming up with workbench moderation.

I'm working on a feature that relies on Display Suite Extra module's "view mode per node" setting to allow users to select some different layout options from within a node editing context. When a mode other than $view_mode == 'full' is active, the workbench block doesn't include any info about revision state, current draft or actions. This makes it a bit tricky for users to move things through the editorial workflow, so I created a patch.

It's based on the latest patch from the Context module issue Node related conditions are only triggered for $view_mode == 'full' that I believe covers this use case.