Was this actually done in the manga? Branching starting points?

I read my stuff online. That means that I am subject to a bunch of grammatical errors, wonky translation issues, useless translation notes, and more.

But are sites/scanshares editing pages they don't have? Just using starter pages from a previous issue? Explaining would take too much time....

I an not affiliated with the site I'm about to link to, I'm not looking for pageviews, it's just easier this way.

[This page (A)]. [And this one (B)]. Both the same, but if you read the stories/pages that continue from there, they are different. [A2]. [B2]. Nothing major, I don't think anything is contradictory.

This isn't the first time I've seen this while reading Naruto, but it is the most recent (now you know how up to date I am about the manga, so please don't spoil anything...major).

Did the author choose to do this? Is it just a different viewpoints sort of thing? Or does someone with physical copies of the books read something different? Maybe I'm not learned enough to see the subtle differences in the branches. Maybe it IS a separate viewpoint thing, which I tend to not notice, since I read for overall entertainment, and not to analyze.

Help, please?