Environment Information

• Package version(s): 8.10.0, Also tried it on 8.15.0 and still repro.
• Browser and OS versions: (fill this out if relevant), not relevant, repro on Edge, Chrome and other browsers.

Please provide a reproduction of the bug in a codepen:

https://codepen.io/syedinaqvi/pen/abJaOyO

Actual behavior:

Go to codepen link here https://codepen.io/syedinaqvi/pen/abJaOyO. Select one option from the dropdown, e.g., select 11:00 PM (ensure that Allow freeform is enabled). Select the 00 part of time and enter 2 numbers to replace the selected value. After first number is pressed cursor jumps to the end.

Expected behavior:

Cursor should not jump to the end.

Priorities and help requested:

Are you willing to submit a PR to fix? No

Requested priority: (Blocking, High, Normal, Low), High, as it repro only on v8.

Products/sites affected: Outlook Web