civicrm/civicrm-packages — pull request #30 by pratik-joshi (2013-09-11 11:31:44+00:00)
Title: CRM-10760 : improving the checking done for chinese specific values - by checking default civicrm language is chinese or not

The issue for 'delay' (property of autocomplete field) breaking is due to introduction of onChange(0, true); which you can see at line no. 202 packages/jquery/plugins/jquery.autocomplete.js also a warning comment has been put above that code snippet about 'delay' break .

This code was introduced for CRM-6135 issue break fix (chinese character search not triggering) .