How do you bake a low poly model with a mouth bag onto a high poly model without a mouth bag

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I’m making a rig and I’m in the process of finishing sculpting it, when I realize I haven’t added a mouth bag. I don’t want to sculpt a mouth again but let’s say I skipped the mouth bag. Would there be a way to overcome the baking issues   submitted by   /u/Mother-Ad-3522 [link]   [comments]