In this example, I have created 3 revisions in the Design History.
The first revision (1.1) has a polygon.
The second revision (1.2) has a new circle.
The third revision (1.3) has a new line.
When I select a revision which is not the first or the last revision, for example, if I select an intermediate revision such as 1.2, you can see elements that it were created before and after that revision. It would be interesting, a new button in the bar where the user could change the behaviour so it was able to hide those elements created after the selected revision.
In this case, the third revision and the next ones would be hidden. the line would be hidden if this new button were pressed.
I say this because the first impression that a new begginner has is that seems all elements were created before the selected revision.
Regards.