Here's the extension-based approach suggested by @scottgonzalez.
Note that the code is different than it should be because of jQuery UI bug #8724.
[formReset] New behaviour that allows form widgets to become aware of…
… the fact that the form they are in has been reset
[checkboxradio] Adding new behaviour to widget definition
[select] Adding new behaviour to widget definition
[slider] Adding new behaviour to widget definition
@gabrielschulhof - the link to the UI issue is a 404, can you re-link?
Land it once the link works!
Ah, do we have tests for this? The form reset that is.