This PR fixes number_to_currency to avoid negative format when displaying zero. Before this change, number_to_currency(-0.00456789, precision: 2) returned $-0.00
From now on instance dependent associations are supporting preloading. To get more details about this change, read the PR descriptions, it explains it really well.
37 people contributed to Rails since last time. All the changes can be checked here. Until next week!
