Split pane divider overlaps top-positioned normal (non-fancy) tab bar

[barnabee]

What Operating System(s) are you seeing this problem on?

macOS

Which Wayland compositor or X11 Window manager(s) are you using?

No response

WezTerm version

wezterm 20241129-152148-4906789a

Did you try the latest nightly build to see if the issue is better (or worse!) than your current version?

Yes, and I updated the version box above to show the version of the nightly that I tried

Describe the bug

On macOS, when configured to use the "non-fancy" tab bar positioned at the top of the screen, with no application title bar or window buttons (window_decorations = RESIZE or NONE), the split pane divider overlaps the tab bar.

To Reproduce

Configure the Wezterm as described, open a new window, and execute "Split Horizontall (Left/Right)".

Configuration

local wezterm = require 'wezterm'
local config = {}

config.window_decorations = 'RESIZE'
config.adjust_window_size_when_changing_font_size = false

config.font = wezterm.font { family = 'JetBrains Mono', }
config.font_size = 13
config.cell_width = 0.9
config.use_fancy_tab_bar = false
config.hide_tab_bar_if_only_one_tab = false
config.tab_max_width = 48
config.show_new_tab_button_in_tab_bar = false
config.tab_bar_at_bottom = false
config.enable_tab_bar = true
config.pane_focus_follows_mouse = true
config.window_padding = { left = 5, right = 5, top = 5, bottom = 5, }

return config

Expected Behavior

Divider line divides only the main window area and does not overlap the tab bar.

Logs

No errors shown in debug overlay or logs.

Anything else?

No response