Staging pannel goes inactive when fully maximized

Describe the bug

When using the separate Staged changes / Unstaged changes panels, the Staged changes panel becomes gray/inactive when it is fully maximized.

The panel can be maximized through the intermediate screen modes normally. The problem occurs specifically when reaching the final/full maximization state using Ctrl+.

This appears to be a regression introduced in lazygit 0.60.0. Versions 0.59.0 and earlier work correctly.

To Reproduce

1. Open a Git repository in lazygit.
2. Modify a file.
3. Stage the file.
4. Select the Staged changes panel.
5. Press Ctrl+ to increase the panel's screen mode.
6. Continue pressing Ctrl+ until the final/full maximization state is reached.
7. Observe that the Staged changes panel becomes gray/inactive.

Expected behavior

The Staged changes panel should remain active and usable when fully maximized, just as it does in the preceding screen modes.

Actual behavior

At the final/full maximization state, the Staged changes panel becomes gray/inactive.

It still occupies the full screen, but it appears to lose focus and cannot be interacted with normally.

The problem is specific to the separate staged/unstaged panel layout. Using the single Main view does not exhibit this behavior.

Screenshots

See attached screenshot.

Version info

Affected

lazygit 0.60.0 and later

The issue is reproducible with the current version as well:

commit=0134df802366186633176dd2e093a25a1d56c199
build date=2026-09-06T02:37:12Z
build source=unknown
version=0134df80
os=linux
arch=amd64
git version=2.52.0

Working

lazygit 0.59.0 and earlier

I have verified that versions before 0.60.0 do not exhibit this behavior.

Additional context

It seems that this issue is not present in the master, so it might have been already fixed. However I found other problems in master that were also reported.

https://github.com/jesseduffield/lazygit/issues/5974#issuecomment-5804429217