It would be helpful if answers to conditional questions were wiped if the answer to the first question in a series of conditional questions is changed so that the questions that are no longer relevant disappear and so that the data relating to those questions is not saved.
In creating this post I've also noticed that if you upload a screenshot and then click on that screenshot to check it, there doesn't appear to be a way to close the screenshot without refreshing your browser which wipes your text entry for the post.