decorator update called properly, but widget do not change yet

...org/fortiss/tooling/kernel/ui/internal/ActionService.java

...org/fortiss/tooling/kernel/ui/internal/MarkerService.java

...ooling/kernel/ui/internal/ModelElementHandlerService.java

...ss/tooling/kernel/ui/internal/marker/MarkerDecorator.java

...ooling/kernel/ui/service/IModelElementHandlerService.java

...g/fortiss/tooling/kernel/internal/PersistencyService.java

...tooling/kernel/internal/storage/eclipse/ModelContext.java

...g/fortiss/tooling/kernel/service/IPersistencyService.java

.../fortiss/tooling/kernel/util/ProjectRootElementUtils.java