When shared workflow definition are used, a different management of object specific code is necessary, since one definition seves for many objects, and it is not freshly created per object. Therefore, a new concept is introduced for workflow definitions, named "object-specifc" Instead of writing in a workflow definition
where the object-specific is evaluated once per request for every involved workflow instance in the context of the object (a [self] in this block refers to the object).
In case a [my object] is encountered and sharedWorkflowDefinition is activated, a warning is produced and the code falls back to old-style shared workflow definitions.