When a user is inputting text into the Notes or cost TextBox and presses Enter, the modal will close without adding the game to the user's collection. There are no additional dialogs or warnings when this happens, which can make it easy for a user to mistakenly believe that they have added an item to their collection unless they know to double-check.
Below is what I've tested:
Platform: Windows 10 Version 1803 (OS Build 17134.1902)
Browsers:
- Mozilla Firefox 85.0 (64-bit)
- Google Chrome 88.0.4324.104 (Official Build) (64-bit)
- Internet Explorer 11.1845.17134.0
- Microsoft Edge 88.0.705.56 (Official build) (64-bit)