Bug: LightType uses sequence instead of choice in XSD schema
The LightType states cardinality 1..1 for both VehicleLight and UserDefinedLight. Most likely it was intended to make either of those two mandatory. However, in the xsd schema, "sequence" is used instead of "choice". Effects for users: When using an editor with auto-completion you will always get both LightTypes as children. Files having only a VehicleLight without a UserDefinedLight on the same hierarchy are strictly not schema conform.