Change Question Type Removes Student Work

Can a change be added that allows us to change a Question Type without removing the students’ current work? For example, I noticed that I left and answer box off of a math quiz, because I initially set it as a Show Your Work question since it involved graphing. However, I realized that I wanted them to put their solution in the answer box, so I adjusted it to a Numeric question and just left the graph image in the show your work box. When I did that though, all of the current student work was wiped out and they had to redo the quiz question.

I have had this happen as well. It would be nice to have the option Traci describes.