Settings.GetStringList not returning default value when no key is found

[sbaer]

From Menno on plug-ins newsgroup

If I run the code below, the returned value is null. I expected it to be an
empty array.

protected override Result RunCommand(RhinoDoc doc, RunMode mode)
{
String[] defaultValue = new string[0];
String[] result = Settings.GetStringList("NO_KEY", defaultValue);
if (null == result)
RhinoApp.WriteLine("Result is null"); //unexpected
else
{
RhinoApp.WriteLine("Result length: {0}",result.Length); // expected
output length => 0
}
return Result.Success;
}