igCombo - Duplicate items are displayed if dataSource contains both half-width and full-width characters and virtualization is enabled.

[mkamiishi]

Description

Duplicate items are displayed if dataSource contains both half-width and full-width characters and virtualization is enabled.
IE works as expected.

• ignite-ui version: 20.2.20.2.17
• browser: Chrome, Edge, FireFox

Steps to reproduce

1. Run the attached sample in Chrome.
   For both combos:
2. Open the drop down.
3. Scroll to the bottom of the list.

Result

The last item is duplicated.
(You will see a different item gets duplicated if you scroll down quickly.)

Expected result

No duplicate items.

Attachments

sample.zip