"Unsaved changes" message incorrectly appears on layout builder

Problem/Motivation

I was getting this error

Fatal error: Declaration of Drupal\layout_builder\LayoutTempstoreRepository::set(Drupal\layout_builder\SectionStorageInterface $section_storage) must be compatible with Drupal\layout_builder\LayoutTempstoreRepositoryInterface::set(Drupal\layout_builder\SectionStorageInterface $section_storage, $has_unsaved_changes = true) in C:\laragon\www\commerce\web\core\modules\layout_builder\src\LayoutTempstoreRepository.php on line 80

After applying patch from https://www.drupal.org/project/drupal/issues/3207875#comment-15831326 🐛 "Unsaved changes" message incorrectly appears on layout builder Needs work it was solved. Thought it might help someone.