Bought an app, uninstalled it and automatically got a refund - how to disable?

Few hours ago I bought an app on Google Play Store that I don't need at a moment, but it looked handy and was on sale. I have installed it, fiddled with it for a few minutes and then uninstalled it. As soon as it finished uninstalling, I got an email that my order was cancelled and refunded. The app isn't in my library anymore and I can buy it again. I don't remember it happening previously when I uninstalled apps just after buying, so it looks like this automatic cancellation was introduced recently. (Or perhaps it's configured per app by developer?) - **Can I opt out of this feature and not get refunds automatically?** - Is there any official statement from Google that such feature was enabled?