[List view] Avoid loading invalid views (#3239)

frappe/public/js/frappe/list/list_view.js

@@ -234,7 +234,7 @@ frappe.views.ListView = frappe.ui.BaseList.extend({
 		var us = frappe.get_user_settings(this.doctype);
 		var route = ['List', this.doctype];
 
-		if (us.last_view) {
+		if (us.last_view && frappe.views.view_modes.includes(us.last_view)) {
 			route.push(us.last_view);
 
 			if (us.last_view === 'Kanban') {