Yes, I agree with you on this.
For example, when someone edits a wiki, the old article should be in reserve, otherwise, when someone who doesn’t like you changes the article, all the effort will be wasted because there is no old article.
For this, when someone edits the wiki, it must be the old version, the officials need to see the change, where they have changed and it will be nice if there is an option such as undoing the changed place.