Regression: You cannot enter new lines when editing a resource file. This prevents you from hot-fixing resources in the Resources app. The code field does not add a line when you press enter.

To reproduce:

1. Open the Resources app.
2. Edit any YAML file such as /travel-demo/dialogs/components/textImage.yaml
3. Try to enter new lines in the middle of the file.

Workaround 1:
Copy the file contents to an external text editor, make your changes, and paste back into the code field.

Workaround 2:
Press SHIFT + ENTER