I think you are fine since you mentioned it on her own schedule A form, but no harm in sending an updated one via webform. You'd probably get your PPR before they look at it anyways .Well I missed reading it but it says on the form "Have you, or, if you are the principal applicant, any of your family members listed in your application for permanent residence in Canada, ever " I just realized it today when someone asked question relating to it. I have mentioned her rejection on her schedule A but not mine.
Now is that okay or do I need to write them a webform?