No lookup field update in timeline view

No lookup field update in timeline view

Timeline (history of activities with a record) has not indicate while lookup type field has changed within a record. Timeline indicate the last update time but not indicate the nature of lookup field update. When this challenge will be fixed? Is anybody has a solution? I have an idea to add custom module (say "Changes") and add changes as a standalone record. Then watch this change in related list. Does it work?