Setting Default year breaks the year selector

[uevandalla]

I've added this as my element in my application:

                    <MonthPicker
                        @change="showDate"
                        date-format="%n %Y"
                        :show-current="true"
                        :show-year="true"
                        :default-month="month"
                        :default-year="year"
                        :min-date="getDate()"
                    >
                    </MonthPicker>

This is the result:

Note: if the year is hard coded to a number it doesn't break however if using a variable of any kind this is the result