Small issue with Alt+Tab

[Kwepoi]

Alt tabbing works like expected as a 'return to last window' if pressed quickly, if held shows preview, good, but if the 'overview' is used it does not return to the last window as expected and selects the same window again instead.

System Information

• niri version:
  niri 25.08 (commit 6ca21e7)

• Distro:
  Linux nixos 6.12.58 1-NixOS SMP PREEMPT_DYNAMIC Thu Nov 13 20:34:41 UTC 2025 x86_64 GNU/Linux

• GPU:
  RTX 2080 Ti (Driver Version: 580.105.08)

• CPU:
  AMD Ryzen 7 7745HX

[HigherOrderLogic]

Sounds like #2834.