Event callback called twice

[jzfsdev]

i write a select component as jsfiddle

http://jsfiddle.net/Joe_Zhong/wy2qf6yx/19/

when change the dropdown list, childChange will be called in the select-component and parent vm (reference to the console log).

Expected callback function called only once at parent vm.

[yyx990803]

Thanks for reporting! Fixed in latest commit.