Combobox stores previously selected values and allows to select them even when the options change

[HariniMadhi]

When the options of the combobox change, and previously some value has been selected, the previously selected value is also seen in the new options, under a line.
But the issue is that, it allows that value to also be selected - but that is not a part of the new options of the combobox.

To reproduce,

import ipywidgets as widgets
from IPython.display import display

options1 = ['1', '2', '3', '4', '5']
options2 = ['11', '12', '13', '14', '15']

combo = widgets.Combobox(options = options1, placeholder = 'Displaying Options1 on click')
display(combo)

Click on any option, and then:

combo.options = options2
combo.placeholder = 'Displaying Options2 on click'

After executing this, the expected behaviour is to display the placeholder, or the first element in options2.

But still the older selected value is displayed - even though its not in options2.
Deleting it and clicking to see the options displays the older selection in the last row, and allows it to be selected

[maartenbreddels]

Hi,

thank you for your report. Which version of ipywidgets is this, because I think this is fixed in #3682 which is released as 8.0.6.

Regards,

Maarten

[HariniMadhi]

Hi, Thanks. I'm using version 7.6.3
Will update and check