The document workflow no longer logs child workflow events for nested workflow executions like acceptRequest

The workflow event handling for document workflow has a regression in CMS 7.9 where for nested workflow actions like 'acceptRequest' (without scheduled date) now only the 'acceptRequest' event is logged.

In CMS 7.8 and before, the acceptRequest action itself delegated child workflow actions as 'version' and 'publish' (or 'depublish') through the WorkflowManager, which also took care of 'logging' those invocations as workflow events.

In CMS 7.9 the implementation of the document workflow was replaced with an SCXML statemachine, which now takes care of these child workflow actions itself, no longer calling back into the WorkflowManager.
As result, workflow events no longer are logged for such child workflow actions.