Number of edits of the first post of a thread

A tiny issue, but I'm curious how the forum software works. In the first post of this thread:

it's indicated that I have edited the post twice. I'm pretty sure that I didn't edit the post, let alone twice.

Could it be that thread operations by a forum admin affect the edit count of the first post?

You can see the reasons/actions undertaken for a post if you click on the pencil symbol, in this case the edit is related to the folder change from "Bug reports" to "Fixed bugs"

Yes, thanks. It's a little weird that it looks like a post edit when it's a thread edit by admin.

If it's important to show the edits, they should be accurately presented I think.