Redacting a Hidden Layer Form XObject Creates Duplicate OCGs
After redacting (with hidden content removal disabled) a hidden layer form XObject partially, the toggling of the hidden layer fails. This is because Acrobat creates a copy of the OCG. One of the OCG objects is toggled in /OCProperties; however, this isn't the OCG that's present in the form xobject's /OC entry. Rather, the form xobject references the copy of the OCG. Therefore, toggling does nothing, and behaviour is unclear since it looks as if redacting a hidden layer makes the content visible by default.
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