Steps to reproduce

1.  Set to true the "Source" option for the RichText on the config-magnolia.js file
2.  Modify a component (e.g, TextandImage) for use as configJsFile the /.resources/ckeditor/config-magnolia.js file
3. Create the component, Use the Source option and , on the textarea, press Enter key
4. Check the dialog is closed

Expected results

Pressing the Enter key doesn't close the dialog

Actual results

Pressing the Enter key closes the dialog

Workaround

N/A

Development notes

even trying to override the onkeypress function for this textarea, the dialog still closes