Windows changing while switching between spaces in stack layout

Hi there 👋 , thanks for this amazing tool, it have really changed the way i work

this issue is something thats been bugging me from time to time

i am using stack layout since i want my windows stacked on top of each other in a space, the problem is , when i switch to another space (i am not using yabai for switching spaces, i am using macs mission control keyboard shortcut) and come back to the original space from where i switched , the next window in the stack is focused in that space.

for example, consider two spaces:-

space 1 :- vscode window 1 , vscode window 2, postman window
space 2: - vscode window 3, vscode window 4, chrome window

consider we are in space 1 now and vscode window 1 is in focus and is in top of the stack, then when i switch to space 2, and come back to space 1, vscode window 2 is focused instead of vscode window 1, and then when i switch to space 2 again , vscode window 4 is focused instead of vscode 3,

i only observed this behaviour with multiple windows of vscode, and is only present when multiple windows of the same application is present in a space, which means if postman window is in focus on space 1 and i go to space 2 and come back to space 1 , postman window will be in focus as expected

any idea why this is happening ?

here is my yabairc

```
# bsp, stack or float
yabai -m config layout stack

yabai -m space --layout stack

# Set default behavior for new windows
yabai -m config window_placement second_child
yabai -m config window_follows_mouse focus

# spaces
yabai -m space 1 --label app1
yabai -m space 2 --label app2
yabai -m space 3 --label app3
yabai -m space 4 --label slack
yabai -m space 5 --label finder
yabai -m space 6 --label chrome-personal
yabai -m space 7 --label chrome-work

# app ignores
yabai -m rule --add app="^Calculator$" manage=off

# app assigns
yabai -m rule --add app="Code" title=".*app1.*" space=app1
yabai -m rule --add app="Code" title=".*app2.*" space=app2
yabai -m rule --add app="Code" title=".*app3.*" space=app3
```

my skhdrc :-

```
# Change focus between external displays (top and bottom)
cmd - i : yabai -m display --focus north && yabai -m window --focus stack.recent
cmd - m : yabai -m display --focus south && yabai -m window --focus stack.recent

# Move window to prev and next space
shift + alt - p : yabai -m window --space prev;
shift + alt - n : yabai -m window --space next;

# Move window to space
shift + alt - 1 : yabai -m window --space 1;
shift + alt - 2 : yabai -m window --space 2;
shift + alt - 3 : yabai -m window --space 3;
shift + alt - 4 : yabai -m window --space 4;
shift + alt - 5 : yabai -m window --space 5;
shift + alt - 6 : yabai -m window --space 6;
shift + alt - 7 : yabai -m window --space 7;

# Start / Stop yabai
ctrl + alt - y : yabai --restart-service

# Start / Stop skhd
ctrl + alt - s : skhd --restart-service

# Focus the next window of the same application in the stack
cmd - j : yabai -m window --focus stack.next || yabai -m window --focus stack.first

# Focus the previous window of the same application in the stack
cmd - k : yabai -m window --focus stack.prev || yabai -m window --focus stack.last

```

thanks in advance

Reproduce the issue with yabai's stack layout, macOS Mission Control space switching, and multiple VS Code windows in each space; compare that with a space containing one Postman window. No source file or test is named, so trace the window-focus behavior from the stack layout and space-switching entry points, and consider the issue done when the previously focused window remains focused after returning to a space.

Written by the indexing model from the issue text.