[Building Sakai] Using the Gradebook API

[csev]

It seems as though there is no way using the Gradebook (edu-services) API to delete a grade.   I don't want to delete a grade column / assignment - simply reset a cell (row/column) for a particular user to be once again "empty".

You can set a comment to be empty by passing in null - but when you pass a null into setAssignmentScoreString it does an NPE (reasonable behavior).

I would think that a better behavior would be to empty out the cell.

Has this been discussed?  Thoughts?

/Chuck