jquery-3.5.1.min.js:2 Uncaught TypeError: Cannot read property 'value' of undefined

[enayath12]

Because of the security issue in our project we are currently using jQuery 3.5.1 version.
https://code.jquery.com/jquery-3.5.1.min.js

After this change we are facing the below issue when click on tab.

Uncaught TypeError: Cannot read property 'value' of undefined
at HTMLInputElement.handler (jquery-3.5.1.min.js:2)
at HTMLUListElement. (jquery.tag-editor.js:114)

example:
In tagEditor once we type word TEST and click on tab button, cursor is moving out input field and in console I can see the error.

[enayath12]

jQuery-tagEditor-master 2.zip

attached tagEditor plugin which has issue

We can test instantly by changing to any jQuery version. At line number 371.

issue is with:
https://code.jquery.com/jquery-3.5.1.min.js
jQuery-tagEditor-master 2.zip

[yads]

As far as I can tell this is fixed in the latest 3.x jquery branch https://github.com/jquery/jquery/blob/3.x-stable/src/event.js#L590