Shows "unsaved changes" alert message twice when user press close button while editing order.

While editing the order when user press the close button then alert box is showing twice.

Steps to reproduce.
1. Login to reseller UI and pick up the merchant with deployed order.
2. In the current order page, press Edit Account button to edit order.
3. Open schedule widget and enable the Scheduled Start date by enabling the check box.
4. Press Close button then user will get "You have unsaved changes, are you sure you wish to leave and lose the changes?" alert message.
5. Press OK button.

Actual result: User will get same alert message again after clicking OK button.

Expected result: Current Order page should be loaded after clicking OK button.