Datepicker - Date disaplyed is not the date chosen

[herders]

This is an interesting bug

When viewing the ​https://jsfiddle.net/y9r8ygwx/ the textbox calendar shows Aug 1950 as the date in the drop downs, when I choose a date the date chosen is the day and month selected but the year is this year. When changing the month the same behaviour, although when changing the year the year renders properly

Thanks for your consideration

[herders]

Setting the defaultDate to "-65y" alleviates this issue and the date renders properly, solved but not intuitive.

Thanks

[Scott González]

Duplicate of #8873.