List v3: Time pickers do not save values properly

Time picker does not save values properly and adds a timezone while list-editing.

1. Activate List v3.

   For more information, see the product documentation topic Activate List v3.

2. Navigate to any list, for example, incident.list.

3. Choose Configure > List Layout.

4. Add a custom GlideTime field to layout and Save.

5. Double-click to list-edit the newly created cell.

6. Save the value without changing the time.

   See that a timezone has been applied to the time.

Disable List v3 or remove the field from the list layout.

Both options will force the user to modify/update the GlideTime field from form view, in which the issue does not occur.