"Submit all parts" not working as expected with coding extension

[aamirzk]

If a student puts their code in to each part, doesn't submit individually, but then clicks "Submit all parts", only the final question is marked correctly, the rest are marked incorrectly (even though they are correct). This is with questions using the programming extension. Tested on this question.

[christianp]

I think this might only be a problem with R: the blocks of code from each part are interleaved, so when you do .Last.value to get the student's result, it always gets the result from the last part.

I'll look at fixing the WebRRunner tomorrow to avoid this.