}
if (!currentEnrollments.isEmpty()) {
for (Request request : getModel().variables())
getAssignment().unassign(0, request);
for (Enrollment enrollment : currentEnrollments) {
<BUG>if (enrollment.getReservation() == null) continue;
Map<Constraint<Request, Enrollment>, Set<Enrollment>> conflicts = getModel().conflictConstraints(getAssignment(), enrollment);</BUG>
if (conflicts.isEmpty())
getAssignment().assign(0, enrollment);
else

}
Map<Constraint<Request, Enrollment>, Set<Enrollment>> conflicts = getModel().conflictConstraints(getAssignment(), enrollment);
if (conflicts.isEmpty())
getAssignment().assign(0, enrollment);
else
