I have written some custom js to do what I need to do. Here it is for anyone who wants to use it.
# custom.js
$(document).ready(function() {
$("input[name=title], input[name=name], select[name=category]").on('change', function() {
// console.log('name or title changed');
$("input[name=permalink]").val("");
});
});
I have renamed 'title' to 'name' in some table, and have a 'category' field in most tables. If any of these change then the permalink is cleared and reset on save.
I have a custom plugin to handle the category lookup for label since the permalink does not currently support 'category:label'.
Jeff Shields