SharePoint Duplicate Comments

One of my SharePoint Users has had an issue with duplicate comments being made.

It doesn't happen every time though. It's only when they have to request permission to share it. 

It won't allow her to add the comment without her clicking share and notify. Then, it shows two comments like this:

Here's what it looks like for them:

Is there a way I can set it so it doesn't make duplicate comments, but still require them to grant access?