XML Documentation does not auto expand on the first type in a unit

When I have the code:

namespace ns;

type y = public Class
end;

type q = public class
end;

end;

When I place my cursor above type q and type /// I get:

namespace ns;

type y = public Class
end;
/// <summary>
/// 
/// </summary>
type q = public class
end;

end;

When I do the same above type y, I get:

namespace ns;
///
type y = public Class
end;
/// <summary>
/// 
/// </summary>
type q = public class
end;

end;

When I press Enter, another line with /// is added.
But I don’t get the XML documentation.

Thanks, logged as bugs://83392