When a creole tree is started beginning already indented, it's treated as new trees each time. I've only tried this in a class diagram as for now.
See the screenshot and/or online editor:
http://www.plantuml.com/plantuml/uml/SoWkIImgAStDuKhEIImkLb0ApizDTGOp7PMughaKW41N8RuOA1gMMCIbgmiMqLQ0AzFGH1BnJIt9o4y12K51JRn2I55gga9cIMgkWY5sOIFimiP8vlgNPAGMmGslvS9qh1D5ZiLqAAOZINAWGsfU2Z1G0G00
This is a pretty important issue for me right now, so I'm bumping this so I can get at least a reaction to know if this either acknowledged as a bug or a feature 'by design'.
(--------)