The question I have is about the general functionality of the back button in wizards. I was thinking about the possible behaviors of this button and I couldn't find any clue which one is the right choice between these two options.
1- It should show the previous page and the changes made in the current form shouldn't be saved.
2- It should show the previous page and the changes made in the current form should be saved.
I would like to know which option you think is the correct behavior for the back button and why.