You are referring to the Fan wiki, which is created by folks who capture the information when the event runs on Beta. There are times, like with this quest, that the number of items, goods, productions, coins and supplies, paid or collected that's different by age. Unless they're able to get information from other Beta players in other ages, they are likely unaware that this quest is adjusted by age.
So the Wiki should state:
- Casanova: "Motivate or polish 40 buildings of other players" and "Finish an 8-hour production x times."
Unless someone captured the information from Beta and shared it in the comments, no one knows for sure about quest 48 until we get there.