Old marshaller tests for AdHocSubProcess are failing.

The tests are in the class: org.kie.workbench.common.stunner.bpmn.backend.service.diagram.marshalling.subprocesses.AdHocSubProcessTest

• testUnmarshallTopLevelEmptyPropertiesSubProcess() and testUnmarshallSubProcessLevelEmptyPropertiesSubProcess() are failing because:
  adHocCompletionCondition script is null instead of "".

• Tests testMarshallTopLevelEmptyPropertiesSubProcess() and testMarshallSubProcessLevelEmptyPropertiesSubProcess() are failing because:
  Node before marshalling has adHocCompletionCondition script set to null and after marshalling it is set to autocomplete.

• testMarshallTopLevelFilledPropertiesSubProcess() test is failing because there are different process data before and after marshalling:
  • "subVarString:String,subVarCustom:CustomType,subVarBoolean:Boolean,subVarFloat:Float,subVarInteger:Integer,subVarObject:Object"
  • "subVarString,subVarCustom,subVarBoolean,subVarFloat,subVarInteger,subVarObject"