[BUG] Zoom tool requires all the renderers in a subplot context

[maximlt]

Software versions

Python version : 3.10.13 | packaged by conda-forge | (main, Oct 26 2023, 18:09:17) [Clang 16.0.6 ]
IPython version : 8.18.1
Tornado version : 6.3.3
Bokeh version : 3.3.2
BokehJS static path : /Users/mliquet/miniconda3/envs/hv310/lib/python3.10/site-packages/bokeh/server/static
node.js version : (not installed)
npm version : (not installed)
jupyter_bokeh version : (not installed)
Operating system : macOS-13.5.2-arm64-arm-64bit

Browser name and version

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Jupyter notebook / Jupyter Lab version

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Expected behavior

@mattpap hinted at the fact that I shouldn't have to pass an explicit list of all the renders when creating a zoom tool in a subplot context, as the default value of 'auto' should lead to including all of them.

Observed behavior

Without the explicit link of renderers, it looks like the zoom tool is behaving as if level=0.

Example code

import numpy as np

from bokeh.core.properties import field
from bokeh.io import show
from bokeh.models import ColumnDataSource, Div, FactorRange, ZoomInTool, ZoomOutTool, Range1d
from bokeh.plotting import figure

n_channels = 5
n_seconds = 15

total_samples = 512*n_seconds
time = np.linspace(0, n_seconds, total_samples)
data = np.random.randn(n_channels, total_samples).cumsum(axis=1)
channels = [f"EEG {i}" for i in range(n_channels)]

x_range = Range1d(start=time.min(), end=time.max())
y_range = FactorRange(factors=channels)

p = figure(x_range=x_range, y_range=y_range, lod_threshold=None, tools="pan,reset")

source = ColumnDataSource(data=dict(time=time))
renderers = []

for i, channel in enumerate(channels):
    xy = p.subplot(
        x_source=p.x_range,
        y_source=Range1d(start=data[i].min(), end=data[i].max()),
        x_target=p.x_range,
        y_target=Range1d(start=i, end=i + 1),
    )

    source.data[channel] = data[i]
    line = xy.line(field("time"), field(channel), source=source, name=channel)
    renderers.append(line)

zoom_kwargs = dict(
    # NOTE: uncomment for this to work as expected
    # renderers=renderers,
    level=1,
    dimensions="height"
)

zoom_in = ZoomInTool(**zoom_kwargs)
zoom_out = ZoomOutTool(**zoom_kwargs)
p.add_tools(zoom_in, zoom_out)

show(p)

Stack traceback or browser console output

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Screenshots

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