result.setChangeId(changeId);
final ChangeControl control = changeControlFactory.validateFor(changeId);
final Change change = db.changes().get(changeId);
final PatchSet.Id patchSetId = change.currentPatchSetId();
if (!control.canRestore()) {
result.addError(new ReviewResult.Error(
ReviewResult.Error.Type.RESTORE_NOT_PERMITTED));
return result;
}