Why is my styling of a node stereotype element overwritten when containing components?

Question

I want to style the stereotypeFontColor and stereotypeFontStyle for a node element in my UML diagram.
All worked as expected, but as soon as i added a component into my node the styling of the stereotype seems not to work any longer.
Is this a bug or am i doing something wrong?

Works as expected:

@startuml

skinparam node {

    fontColor green
    fontStyle normal
    stereotypeFontColor green
    stereotypeFontStyle bold
}

node "test node" <<device>> {
}

@enduml

Seems wrong:

@startuml

skinparam node {

    fontColor green
    fontStyle normal
    stereotypeFontColor green
    stereotypeFontStyle bold
}

node "test node" <<device>> {

   [test]
}

@enduml