The _dialogInput not moved following the draggable datepicker

[chunlinyao]

When show datepicker in a dialog. The created _dialogInput is behind the dialog. But If I made the dialog draggable and move it.
The _dialogInput will not following the dialog. And we can see the input box.

[mgol]

Thanks for the report. Does the issue you describe exist when jQuery UI 1.12.1 is used or only with jQuery UI 1.13.0 or newer?

Also, please provide a test case on a platform like JS Bin.

[chunlinyao]

This is a test case on jsbin https://output.jsbin.com/haqukex
Drag and move the calendar.

[mgol]

Thanks for the report. Since the issue is already in 1.12, given limited team resources it's not likely to be fixed by the UI team; see the project status at https://blog.jqueryui.com/2021/10/jquery-maintainers-update-and-transition-jquery-ui-as-part-of-overall-modernization-efforts/. PRs are welcome if they're not too complex.