cocos2d/cocos2d-x — pull request #6616 by xhcnb (2014-05-08 02:55:00+00:00)
Title: Fix crash: use cocostudio gui editor, create a action in editor, when yo...

Fix crash: use cocostudio gui editor, create a action in editor, when you play like:

auto _action = getActionByName("action_name");
_action->play(CallFunc::create([](){
CCLOG("done.");
}));
It'll crash.

if we just CC_SAFE_RETAIN(_CallBack) and relase _CallBack, the log will not stop, so unschedule