New calendar view in iOS 14 causes webview pages to be scrollable

After iOS 14 introduced the new calendar view, there is a weird behaviour in wkwevbiew: If you click a datetime input field while the keyboard is shown, then the entire web page will be pushed up even after you closed the calendar view.

The demo can be found here:
https://github.com/Noisyfox/ios14-webview-datepicker-issue

Is there a workaround for this issue? Or will this be fixed soon?
New calendar view in iOS 14 causes webview pages to be scrollable
 
 
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