[BUG] Figures break inside Scrollbox if using frame_height or followed by div using stretch_width

[solstag]

Software versions

Python version : 3.10.7 (main, Jan 1 1970, 00:00:01) [GCC 11.3.0]
IPython version : 8.5.0
Tornado version : 6.4
Bokeh version : 3.3.4
BokehJS static path : /home/user/.local/lib/python3.10/site-packages/bokeh/server/static
node.js version : (not installed)
npm version : (not installed)
jupyter_bokeh version : (not installed)
Operating system : Linux-6.6.18-x86_64-with-glibc2.35

Browser name and version

Firefox 123.0 (64-bit)

Jupyter notebook / Jupyter Lab version

No response

Expected behavior

Figure rendered with given frame_height.

Observed behavior

Figure appears squeezed vertically for tests 5 and 7

Example code

from bokeh import models as bkm
from bokeh import plotting as bkp
from bokeh import layouts as bkl

num = 0

# Fine
fig = bkp.figure(frame_height=150)
fig.line(list(range(10)), list(range(10)))
scr = bkm.ScrollBox(child=fig)
bkp.output_file(f"{num}_test_fig.html", mode="inline")
num += 1
bkp.save(scr)

# Put it in a column, fine
fig = bkp.figure(frame_height=150)
fig.line(list(range(10)), list(range(10)))
col = bkl.column(fig)
scr = bkm.ScrollBox(child=col)
bkp.output_file(f"{num}_test_col.html", mode="inline")
num += 1
bkp.save(scr)

# Add a short div, fine
fig = bkp.figure(frame_height=150)
fig.line(list(range(10)), list(range(10)))
div = bkm.Div(text="foo bar baz")
col = bkl.column(fig, div)
scr = bkm.ScrollBox(child=col)
bkp.output_file(f"{num}_test_col_with_short_div.html", mode="inline")
num += 1
bkp.save(scr)


# Add a height to Scrollbox (not scrolling), still fine
fig = bkp.figure(frame_height=150)
fig.line(list(range(10)), list(range(10)))
div = bkm.Div(text="foo bar baz")
col = bkl.column(fig, div)
scr = bkm.ScrollBox(child=col, height=500)
bkp.output_file(f"{num}_test_col_with_short_div_scr_height.html", mode="inline")
num += 1
bkp.save(scr)

# Add a long div, fine
fig = bkp.figure(frame_height=150)
fig.line(list(range(10)), list(range(10)))
div = bkm.Div(text="<br/>".join(100 * ["foo bar baz"]))
col = bkl.column(fig, div)
scr = bkm.ScrollBox(child=col)
bkp.output_file(f"{num}_test_col_with_long_div.html", mode="inline")
num += 1
bkp.save(scr)

# Add a height to Scrollbox (scrolling), and it breaks
fig = bkp.figure(frame_height=150)
fig.line(list(range(10)), list(range(10)))
div = bkm.Div(text="<br/>".join(100 * ["foo bar baz"]))
col = bkl.column(fig, div)
scr = bkm.ScrollBox(child=col, height=500)
bkp.output_file(f"{num}_test_col_with_long_div_scr_height.html", mode="inline")
num += 1
bkp.save(scr)

# Replace frame_height by sizing_mode 'stretch_both', fine
fig = bkp.figure(sizing_mode="stretch_both")
fig.line(list(range(10)), list(range(10)))
div = bkm.Div(text="<br/>".join(100 * ["foo bar baz"]), sizing_mode="stretch_both")
col = bkl.column(fig, div, sizing_mode="stretch_both")
scr = bkm.ScrollBox(child=col, height=500, sizing_mode="stretch_both")
bkp.output_file(f"{num}_test_sm_col_with_long_div_scr_height.html", mode="inline")
num += 1
bkp.save(scr)

# Replace frame_height by sizing_mode but give the div a 'stretch_width', and it breaks
fig = bkp.figure(sizing_mode="stretch_both")
fig.line(list(range(10)), list(range(10)))
div = bkm.Div(text="<br/>".join(100 * ["foo bar baz"]), sizing_mode="stretch_width")
col = bkl.column(fig, div, sizing_mode="stretch_both")
scr = bkm.ScrollBox(child=col, height=500, sizing_mode="stretch_both")
bkp.output_file(f"{num}_test_sm_divsw_col_with_long_div_scr_height.html", mode="inline")
num += 1
bkp.save(scr)

Stack traceback or browser console output

No response

Screenshots

No response

[solstag]

EDIT: I started fresh and could only reproduce problem in test 5, the others work fine now.
EDIT2: Found another case where output is squeezed without setting frame_height.