cc.EditBox.setFontColor() crash

When I call function cc.EditBox.setFontColor() in jsbinding, then game is crash, and I found it because to get RGB property in function jsval_to_cccolor3b()!How to solve it?

By the way, there is a visiable bug in cc.EditBox.I call function cc.EditBox.setText() in jsbinding to set text.Unless I click the box,otherwise it will not display.