Auto bounds breaks link_axis and link_cursor

[tripokey]

Describe the bug

While auto bounds is active link_axis and link_cursor does not work if the plot data for the different plots have a different width.

The linking works if the user zoom's in, but when the user double clicks to enable auto bounds the plots are unaligned again.

To Reproduce

Run the following example:

use eframe::egui;
use egui_plot::Line;

fn main() -> eframe::Result {
    let native_options = eframe::NativeOptions::default();

    eframe::run_simple_native("UnalignedPlots", native_options, move |ctx, _frame| {
        egui::CentralPanel::default().show(ctx, |ui| {
            let plot_height = ui.available_height() / 2.0;

            egui_plot::Plot::new("Plot1")
                .height(plot_height)
                .link_axis("plot_axis", [true, false])
                .link_cursor("plot_cursor", [true, false])
                .show(ui, |ui| {
                    ui.line(Line::new(vec![[0.0, 1.0], [10.0, 0.5]]));
                });

            egui_plot::Plot::new("Plot2")
                .height(plot_height)
                .link_axis("plot_axis", [true, false])
                .link_cursor("plot_cursor", [true, false])
                .show(ui, |ui| {
                    ui.line(Line::new(vec![[5.0, 0.5], [7.0, 1.0]]));
                });
        });
    })
}

Cargo.toml:

[package]
name = "unaligned_plots"
version = "0.1.0"
edition = "2021"

[dependencies]
egui = "0.31"
egui_plot = { git = "https://github.com/emilk/egui_plot", branch = "main" }
eframe = { version = "0.31", default-features = false, features = ["x11", "default_fonts", "wgpu"] }

Expected behavior

The x axis for both the cursor and the plot should be linked even while auto bounds is active.

Screenshots

As can be seen in the image both cursor and plot axis are not aligned properly.