When the Election Review Board considers an appeal, all members of the Board shall attend. If the appeal relates to a decision through which the outcome of a general election to the Riksdag or a general election to a county council or municipal assembly has been determined, the Board shall be composed as it was at the time of these elections. If the appeal relates to a decision through which the outcome of another election has been determined, the Board shall be composed as it was at the time for that election.