EllisLab/CodeIgniter — pull request #2538 by vlakoff (2013-07-19 00:07:00+00:00)
Title: Fix config_item() returning stale values

Use case fixed:

config_item('foobar'); // returns "some value"
$CI->config->set_item('foobar', 'new value');
config_item('foobar'); // still returns "some value", expected "new value"