publish a grade on new score even after completed (#57)

Some packages may send the final score after updating success and/or completion status
Fix Issue #56

Author: bryanlandia

openedxscorm/scormxblock.py

@@ -442,6 +442,8 @@ def set_value(self, data):
         completion_status = None
         lesson_score = None
 
+        is_completed = self.lesson_status == "completed"
+
         self.scorm_data[name] = value
         if name == "cmi.core.lesson_status":
             lesson_status = data.get("value")
@@ -471,7 +473,7 @@ def set_value(self, data):
             self.success_status = success_status
         if completion_status == "completed":
             self.emit_completion(1)
-        if success_status or completion_status == "completed":
+        if success_status or completion_status == "completed" or (is_completed and lesson_score):
             if self.has_score:
                 self.publish_grade()