On revisions and commits, added inlines as the author and a reviewer/auditor. Marked them done/not-done before submitting. As author, marked the not-done ones done after submitting. Checked preivews, toggled done/not done states.
Hmm, which part feels weird? The motivation? The actual action?
Would it still feel weird if the UI said "Don't bother the author with a done checkbox for this comment [X]"?