[Bug]: ComboBox allow non-existing value after a set of actions

[jayolee]

Package

@carbon/react

Browser

Chrome

Package version

1.64.1

React version

18.2.0

Description

By going through a certain set of actions, you can select a non existing option from the ComboBox with allowCustomValue={false}

Same behavior is observed from the official Storybook.

Reproduction/example

https://react.carbondesignsystem.com/?path=/story/components-combobox--default

Steps to reproduce

1. Select an option
2. Type a random value
3. Enter (return) and blur

Error reproduction:

combobox_error.mov

Suggested Severity

Severity 3 = User can complete task, and/or has a workaround within the user experience of a given component.

Application/PAL

No response

Code of Conduct

• I agree to follow this project's Code of Conduct
• I checked the current issues for duplicate problems

[emyarod]

possibly related #16864