Datepicker auto-refreshes without any event handler attached to it

[pramodraam]

Hi,

In the cartpage of our Shopify store, there is a field to capture future ship date. As soon as one chooses a date, it is auto-refreshing the page and reverting the date to default while the value for the field is selected one in the HTML. It is on development theme I'm working on. https://trprwytuwck64jd3-458195004.shopifypreview.com

Could you please help me find out the cause of the issue?