Include submitter data in FormData on submit

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared/wwwroot/libs/abp/aspnetcore-mvc-ui-theme-shared/jquery-form/jquery-form-extensions.js

@@ -100,6 +100,10 @@
 
             arr = $form.serializeArray();
             var formData = new FormData(formEl);
+            var submitter = e.originalEvent && e.originalEvent.submitter;
+            if (submitter && submitter.name) {
+                formData.append(submitter.name, submitter.value);
+            }
 
             var method = (options.method || $form.attr("method") || "POST").toUpperCase();
             var url = $form.attr("action") || window.location.href;