Change value of stateful button after event loop

Fixes #14450

js/button.js

@@ -35,10 +35,10 @@
 
     if (data.resetText == null) $el.data('resetText', $el[val]())
 
-    $el[val](data[state] == null ? this.options[state] : data[state])
-
     // push to event loop to allow forms to submit
     setTimeout($.proxy(function () {
+      $el[val](data[state] == null ? this.options[state] : data[state])
+
       if (state == 'loadingText') {
         this.isLoading = true
         $el.addClass(d).attr(d, d)