🐛Fix course victory dialog level progress counts

Use classroom versioned levels instead of latest course levels.
Use current level session instead of stale one.

app/collections/LevelSessions.coffee

@@ -5,12 +5,6 @@ module.exports = class LevelSessionCollection extends CocoCollection
   url: '/db/level.session'
   model: LevelSession
 
-  fetchMineForCourseInstance: (courseInstanceID, options) ->
-    options = _.extend({
-      url: "/db/course_instance/#{courseInstanceID}/my-course-level-sessions"
-    }, options)
-    @fetch(options)
-    
   fetchForCourseInstance: (courseInstanceID, options) ->
     options = _.extend({
       url: "/db/course_instance/#{courseInstanceID}/my-course-level-sessions"

app/views/play/level/modal/CourseVictoryModal.coffee

@@ -131,6 +131,8 @@ module.exports = class CourseVictoryModal extends ModalView
     for newItem in @newItems.models
       @views.push(new NewItemView({item: newItem}))
 
+    @levelSessions?.remove(@session)
+    @levelSessions?.add(@session)
     progressView = new ProgressView({
       level: @level
       nextLevel: @nextLevel

server/handlers/course_instance_handler.coffee

@@ -142,13 +142,13 @@ CourseInstanceHandler = class CourseInstanceHandler extends Handler
     CourseInstance.findById courseInstanceID, (err, courseInstance) =>
       return @sendDatabaseError(res, err) if err
       return @sendNotFoundError(res) unless courseInstance
-      Course.findById courseInstance.get('courseID'), (err, course) =>
+      Classroom.findById courseInstance.get('classroomID'), (err, classroom) =>
         return @sendDatabaseError(res, err) if err
-        return @sendNotFoundError(res) unless course
-        Campaign.findById course.get('campaignID'), (err, campaign) =>
-          return @sendDatabaseError(res, err) if err
-          return @sendNotFoundError(res) unless campaign
-          levelIDs = (levelID for levelID, level of campaign.get('levels') when not _.contains(level.type, 'ladder'))
+        return @sendNotFoundError(res) unless classroom
+        levelIDs = []
+        for course in classroom.get('courses') when course._id.equals(courseInstance.get('courseID'))
+          for level in course.levels when not _.contains(level.type, 'ladder')
+            levelIDs.push(level.original + "")
         query = {$and: [{creator: req.user.id}, {'level.original': {$in: levelIDs}}]}
         cursor = LevelSession.find(query)
         cursor = cursor.select(req.query.project) if req.query.project