yiisoft/yii2 — pull request #5488 by ahmadrusli (2014-10-11 17:21:28+00:00)
Title: Update BlameableBehavior.php

if we create new record, we don want update by field filled by present user too. so, let update by alone. in reality, if we want create "latest updater list" then this new record creator should not appear in list. do you want listed as updater when you never do update thing? thank you :)