Merge branch 'no_email_on_notification_level_change' into 'master'

app/observers/users_project_observer.rb

@@ -10,7 +10,7 @@ class UsersProjectObserver < BaseObserver
   end
 
   def after_update(users_project)
-    notification.update_team_member(users_project)
+    notification.update_team_member(users_project) if users_project.project_access_changed?
   end
 
   def after_destroy(users_project)

spec/observers/users_project_observer_spec.rb

@@ -21,7 +21,7 @@ describe UsersProjectObserver do
 
     it "should send email to user" do
       subject.should_receive(:notification)
-      @users_project.update_attribute(:project_access, UsersProject::MASTER)
+      @users_project.update_attribute(:project_access, UsersProject::OWNER)
     end
 
     it "should not called after UsersProject destroyed" do