Automatically track referenced questions
it has happened to me that after some answers to my question, i had got an idea of what is my problem and my question have basically changed; in such cases i felt a need to create a new question but tell the SO that this is in continue of the previous, so users can see the previous answers as well, and i don't be forced to edit my existing question.
is it a need to you too? or is it a good idea? and what's the best way to implement it?