Make Granting Access in Google Calendar Instant Sync refresh Authorized date when manual refreshing/updating without revoke

As in title, "Authorized on" doesn't change, making it hard when you for example want update property of My tasks -> All tasks or just when had issues with sync (like I still do, but separate task) to know if you refreshed already certain project, without having to revoke it first, in case you want to see which projects were already refreshed/updated.

From technical pov it could simply first revoke and then grant from scratch if it detects you configured it for project which already was on list. It could also prevent potential sync issues.