@Override
      public void beforeChildRemoval(@NotNull PsiTreeChangeEvent event) {
        final PsiElement child = event.getChild();
        if (!(child instanceof PsiFile psiFile)) {
          if (child instanceof PsiDirectory) {
            final String deletedDirUrl = ((PsiDirectory)child).getVirtualFile().getUrl() + "/";
            for (String dissociatedFileUrl : new SmartList<>(myState.getDissociatedFiles())) {
              if (dissociatedFileUrl.startsWith(deletedDirUrl)) {
                myState.getDissociatedFiles().remove(dissociatedFileUrl);
              }
            }
            for (CustomResourceBundleState customResourceBundleState : new SmartList<>(myState.getCustomResourceBundles())) {
              for (String fileUrl : new ArrayList<>(customResourceBundleState.getFileUrls())) {
                if (fileUrl.startsWith(deletedDirUrl)) {
                  customResourceBundleState.getFileUrls().remove(fileUrl);
                }
              }
              if (customResourceBundleState.getFileUrls().size() < 2) {
                myState.getCustomResourceBundles().remove(customResourceBundleState);
              }
            }
          }
          return;
        }
        if (!PropertiesImplUtil.canBePropertyFile(psiFile)) return;

        final VirtualFile virtualFile = psiFile.getVirtualFile();
        final NotNullLazyValue<String> url = NotNullLazyValue.lazy(() -> virtualFile.getUrl());
        if (!myState.getDissociatedFiles().isEmpty()) {
          myState.getDissociatedFiles().remove(url.getValue());
        }
        for (CustomResourceBundleState customResourceBundleState : new SmartList<>(myState.getCustomResourceBundles())) {
          final Set<String> urls = customResourceBundleState.getFileUrls();
          if (urls.remove(url.getValue())) {
            if (urls.size() < 2) {
              myState.getCustomResourceBundles().remove(customResourceBundleState);
            }
            break;
          }
        }
      }
@Override
      public void beforeChildRemoval(@NotNull PsiTreeChangeEvent event)