Plotting in infinite loop when making multiple selections (MultiSelect), plot not being removed when updated and axis distored

1). The plot does not reset. The new selected plots over the previous plot.

2). When the user makes multiple selections (ctrl+shift) the plot axis gets distorted and it seems to be running in an infinite loop

from pandas import *

import numpy as np
import sys, os

from bokeh.plotting import figure
from bokeh.layouts import layout, widgetbox
from bokeh.models.widgets import MultiSelect
from bokeh.io import curdoc
from bokeh.plotting import reset_output
import math

axis_map = {
    "y1": "y3",
    "y2": "y2",
    "y3": "y1",
}

x1 = np.linspace(0,20,62)
y1 = [1.26 * math.cos(x) for x in np.linspace(-1,1,62) ]
y2 = [1.26 * math.cos(x) for x in np.linspace(-0.95,.95,62) ]
y3 = [1.26 * math.cos(x) for x in np.linspace(-.9,.90,62) ]

TOOLS = "pan,wheel_zoom,box_zoom,reset,save,hover"

vars = MultiSelect(title="At what void[s]", value=["y1"], options=sorted(axis_map.keys()))

master_data = { 'rate' : x1, 
                'y1'   : y1, 
                'y2'   : y2,
                'y3'   : y3             
               }
               
p = figure(plot_height=600, plot_width=700, title="", toolbar_location=None)
pline = figure(plot_height=600, plot_width=700, title="", tools=TOOLS)

def select_data():
         for vox in vars.value:
             pline.line(x=master_data['rate'], y= master_data[vox], line_width=2)
             pline.circle(x=master_data['rate'], y=master_data[vox], line_width=2)
         return 

controls = [  vars]

for control in controls:
    control.on_change('value', lambda attr, old, new: select_data())


sizing_mode = 'fixed'  

inputs = widgetbox(*controls)
l = layout([
    [inputs, pline],
])

select_data() 

curdoc().add_root(l)
curdoc().title = "Plot"

[bryevdv]

@ghrays thanks for the compete code sample. A quick run of the code on master and I don’t see the “infinite loop” behavior, but I also don’t see the plots updating as one would expect either. I think this might be the same underlying issue of #4875 (in which case it will be marked a dupe) but more investigation is needed.

[bryevdv]

I believe this was fixed as part of the work for the other issue. There is no flickering and selecting in the multiselect causes new data to appear (de-selecting does not remove but I would not expect it to–the example code does not do anything that would remove anything). Please re open is a reproducible problem persists.