Cannot grade assignments that have grace days

[mikeing2001]

When a student submits an assignment late and uses graces day, when trying to grade the student assignment, we get a routing error

Steps to Reproduce Issue

1. Log in as an admin and create an assignment that is due now and add a grace period
2. Give a grace day to the student
3. Log in as the student and submit a late assignment
4. Log in as an admin and collect assignment when the assignment is collectible
5. Click on the student with the late assignment and grace day used

Expected Results

• We can grade the student assignment

Actual Results

• Throws ActionController::RoutingError in Results#edit

Reproducible on http://sandbox.markusproject.org/
Not reproducible on http://demo.markusproject.org

[mikeing2001]

I will work on this issue.

[benjaminvialle]

Thank you to work on this.

FYI, sandbox.markusproject.org is at the latest revision of MarkUs master branch (e.g. rails 3.0.0) and demo.markusproject.org is our official demo of latest stable release (e.g. markus 0.11.0 using rails 2.3)