[BUG] <c-o> creates jump points instead of jumping backwards

[lobre]

Version of Kakoune

83fb65a

Reproducer

1. Start an empty kakoune with kak -n.
2. <c-s> save the beginning of the file to the jump list (so first * is selected and saved).
3. w to select the next word.
4. <c-s> to save again (it will save with the full *** selected).
5. w to to next word again (just to move away from the previous selection, any direction would do).

At that point, I am supposed to have in jumplist:

• #0: first * at the beginning of the file.
• #1: first word (*** ).

Now, doing <c-o> goes back to #1 and selects again *** . Until then, everything is fine. However, from now the bug will start to appear.

So just try to move in any direction (such as j to go to the second line), and press <c-o> again, and it will create a new entry in the jumplist instead of going back to #1 again.

And you can keep reproducing. Move again, do <c-o>, new entry again, and so on.

Outcome

It adds new jump points instead of going back to the last one.

Expectations

Go back to #1(which is the latest), and if I do again <c-o> from #1, go back to #0.

Additional information

No response