Potential fix for code scanning alert no. 20: Incomplete multi-character sanitization (#1664)

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: kueken

sourcefiles/modern/plugins/bootstrap-select/js/bootstrap-select.js

@@ -722,7 +722,13 @@
       }
 
       //strip all html-tags and trim the result
-      this.$button.attr('title', $.trim(title.replace(/<[^>]*>?/g, '')));
+      var sanitizedTitle = title;
+      var prevSanitizedTitle;
+      do {
+        prevSanitizedTitle = sanitizedTitle;
+        sanitizedTitle = sanitizedTitle.replace(/<[^>]*>?/g, '');
+      } while (sanitizedTitle !== prevSanitizedTitle);
+      this.$button.attr('title', $.trim(sanitizedTitle));
       this.$button.children('.filter-option').html(title);
 
       this.$element.trigger('rendered.bs.select');