When using tags, searched value appears as option and prevents Select-All

[datenfalke]

Prerequisites

• I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
• The issue still exists against the latest master branch of yii2-widget-select2.
• This is not an usage question. I confirm having read the widget documentation and demos.
• This is not a general programming / coding question. (Those should be directed to the webtips Q & A forum).
• This is not a source plugin (select2) issue. (Those should be directed to the plugin issues repo).
• I have attempted to find the simplest possible steps to reproduce the issue.
• I have included a failing test as a pull request (Optional).

Steps to reproduce the issue

1. Open https://demos.krajee.com/widget-details/select2#usage-tags
2. Enter "a" into first Select2 box
3. click "Select all"

Expected behavior and actual behavior

Expected would be the selection of all found options.

No options are selected, and a JS error appears regarding the missing attr of the entered value "a", see screenshot.

The entered value should not be part of the inserted options when clicking "Select all".

If you enter no search value and click "Select all" it is working because no search value produces the error.

How can I prevent the insertion of the searched value into the list of options?

Isolating the problem

• This bug happens on the widget demos page
• The bug happens consistently across all tested browsers

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.