The change that introduced this bug continues to cause trouble beyond that specific bug (which has been fixed). Please go back to the old notification mechanism, which largely stayed out the way.
With the new system, if someone modifies a post, just about anything you do anywhere near that post will reload. This is particularly annoying when you're editing a post and someone else edits it — the notification comes up, and when you do innocent, normal things (say, Ctrl+A, Ctrl+C to save your changes so you can then refresh to see what changed and make sure not to overwrite them) trigger the reload, making you lose your edits (and making the page jump to a completely different scroll position, for reasons that are unclear). I've wasted a lot of time the last few weeks as a result of this.
Please either ditch it or fix it.