misc: don't use javascript list handling for block widgets (#46856)

wcs/qommon/static/js/widget_list.js

@@ -14,6 +14,14 @@ function prepare_widget_list_elements() {
                     row = $(row).find('tr:last');
                 }
 
+                if ($(row).is('.BlockSubWidget')) {
+                    /* don't apply on block widgets as they need to handle
+                     * maximum number items and the "repeated data" bug is too
+                     * annoying.
+                     */
+                    return true;
+                }
+
                 if ($(row).find('[name$=add_element], [data-dynamic-display-value]').length > 0) {
                     /* this has complex widgets, don't use
                      * javascript in that case */