Small fix, not a bug.

Author: prioux

BrainPortal/lib/view_scopes.rb

@@ -1277,7 +1277,7 @@ def update_session_scopes
           name => { 'f' =>
             common.map { |attr,value|
               value.is_a?(Array) ?
-              { 'a' => attr.to_s, 'v' => value.to_a.map(&:to_s), :o => 'in' } :
+              { 'a' => attr.to_s, 'v' => value.to_a.map(&:to_s), 'o' => 'in' } :
               { 'a' => attr.to_s, 'v' => value.to_s }
             }
           }