failure of dotted rests to go invisible.

To get the appearance and play of single note diminuendo in a single note measure, I create a voice of all rests and create a multiple dotted rest followed by the remainder rest (e.g., quadruple dotted half note rest followed by a 32nd note rest). Then I set the rests to invisible because I prefer uncluttered scores. The dots fail to go invisible. This seems like a bug.