Fix random Argument error when update note

In some strange cases Ruby thinks `system` is not AR field but
Kernel.system call and raises exception during save. It should prevent
this random wierd behaviour

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/app/models/note.rb b/app/models/note.rb
index 5bf645bbd1d..5996298be22 100644
--- a/app/models/note.rb
+++ b/app/models/note.rb
@@ -502,6 +502,6 @@ class Note < ActiveRecord::Base
   end
 
   def editable?
-    !system
+    !read_attribute(:system)
   end
 end