In a followed question, I noticed the notification and checked the answer - both after the fact by 7 minutes I noticed a discrepancy:
Is this expected behaviour if a question's been edited within the first 5 minutes?
Meta Stack Exchange is a question and answer site for meta-discussion of the Stack Exchange family of Q&A websites. It only takes a minute to sign up.Sign up to join this community
It's within the first 5 minutes, thus it doesn't show as an edit.
It may be a bug, but for me this doesn't require any fix. Everybody read the answers by clicking on the link... Nobody reads the answer there. So IMO there is nothing wrong with this.
The inbox always just shows the first version of the post, as it was sent out. It doesn't update according to the updates of the post.
I say this is status-bydesign.