Fixed wrong return by reference
Fixed wrong return by reference

see also: fix #3302 in CodeIgniter:
 https://github.com/bcit-ci/CodeIgniter/commit/69b02d0f0bc46e914bed1604cfbd9bf74286b2e3

or - update to CI 2.2.1
adamos42/ionize,adamos42/ionize,adamos42/ionize