I found this bug when having assistant chats open on kagi.com. I pinned my kagi.com tab and switching to it using CMD + number causes the pinned tab to reload. I also tried it with other websites and it sometimes also jumps back in history (on github.com in my case). Find attached the video demonstration.
Clicking on the tabs does not cause this issue!
I am using the latest 0.99.127.3.1-rc build and tested it with a new profile.
It requires this option to be enabled as I am using this shortcut to switch tabs.

Video:
I expect the tabs I switch to with the shortcut not to reload or to jump back in history.
0.99.127.3.1-rc
Sonoma (14)