It seems a group of clones can't be defined as a mask.
I drew 1 ellipse shape and cloned it 2 times. Then I grouped the 3 shapes and defined it as a mask to an other shape. It seems only the original shape is used as a mask, the others are ignored. Worst when disabling the mask, only the original shape is restored. The group is lost and all its clones.
Try to define the 3 red ellipses as a mask to the black ellipse using the attached file.
Am I missing something ? Is it a bug I should report ?
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