SelectInput Multi doesn't work with integer valueField

[ozgengures]

• Robe React UI Version: 1.1.36
• Node Version: v6.10.2

Actual behavior

Multi Select Input doesn't select items when valueField type like integer.

const langs = [
    {
        key: 1,
        value: "English"
    },
    {
        key: 2,
        value: "Turkish",
        disabled: true
    },
    {
        key: 3,
        value: "Kurdish"
    }
];

Suggest a fix

I think the problem seems to be that the "robe react commons" --> getValueByKey function returns undefined.