Since it would visually stand out anyway (due to the obvious seam) I would just paint it after scraping any loose bits off - contrasting or same as ceiling. Are you staining/preserving the part you're sanding or painting it?
@withered_preacher started
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Since it would visually stand out anyway (due to the obvious seam) I would just paint it after scraping any loose bits off - contrasting or same as ceiling. Are you staining/preserving the part you're sanding or painting it?