On jsp there are: dataList with one inputtext component, one main DATE (inputtext with date converter) component, and one main myName component (required).
Now: filling all data, and putting wrong data in DATE field, click 'Next', validation occurs, message is displayed, but the entered data in dataList are lost.
However, when both DATE field has wrong date and myName field is empty (two validation errors), the entered data in dataList remains!
Looks The problem is with handling ConverterException and dataList.
env: MYFACES 1.1.5, tomahawk 1.1.6.
Example project is attached. Just fill in 'lib' directory, attach context in Tomcat and run: http://localhost:8080/conversionExceptionAndLostData/jsp/testTDataListAndValidation.jsf