Repository: go-gitea/gitea
File: web_src/js/features/repo-issue-edit.ts (TypeScript)

Code before:
        content: comboMarkdownEditor.value(),
        context: String(editContentZone.getAttribute('data-context')),
        content_version: String(editContentZone.getAttribute('data-content-version')),
      });
      for (const file of comboMarkdownEditor.dropzoneGetFiles() ?? []) {
        params.append('files[]', file);
      }

      const response = await POST(editContentZone.getAttribute('data-update-url')!, {data: params});
      const data = await response.json();
      if (!response.ok) {
        showErrorToast(data?.errorMessage ?? window.config.i18n.error_occurred);
        return;
      }

      reinitializeAreYouSure(editContentZone.querySelector('form')); // the form is no longer dirty
      editContentZone.setAttribute('data-content-version', data.contentVersion);

      // replace the render content with new one, to trigger re-initialization of all features
      const newRenderContent = renderContent.cloneNode(false) as HTMLElement;
      newRenderContent.innerHTML = data.content;
      renderContent.replaceWith(newRenderContent);
      renderContent = newRenderContent;

      rawContent.textContent = comboMarkdownEditor.value();
      document.querySelector(`[data-clipboard-target="#${rawContent.id}"]`)?.classList.toggle('disabled', !comboMarkdownEditor.value());

      if (!commentContent.querySelector('.dropzone-attachments')) {
        if (data.attachments !== '') {
          commentContent.insertAdjacentHTML('beforeend', data.attachments);
        }
      } else if (data.attachments === '') {
        commentContent.querySelector('.dropzone-attachments')!.remove();
      } else {
        commentContent.querySelector('.dropzone-attachments')!.outerHTML = data.attachments;
      }
      comboMarkdownEditor.dropzoneSubmitReload();
    } catch (error) {
      showErrorToast(`Failed to save the content: ${error}`);
      console.error(error);
    } finally {
      renderContent.classList.remove('is-loading');
    }
  };

  // Show write/preview tab and copy raw content as needed
  showElem(editContentZone);
  hideElem(renderContent);

  comboMarkdownEditor = getComboMarkdownEditor(editContentZone.querySelector('.combo-markdown-editor'))!;
  if (!comboMarkdownEditor) {

Review comment (suggestion):
```suggestion
      # update "Copy Source" menu item disabled state
      document.querySelector(`[data-clipboard-target="#${rawContent.id}"]`)?.classList.toggle('disabled', !comboMarkdownEditor.value());
```

Code after:
        content: comboMarkdownEditor.value(),
        context: String(editContentZone.getAttribute('data-context')),
        content_version: String(editContentZone.getAttribute('data-content-version')),
      });
      for (const file of comboMarkdownEditor.dropzoneGetFiles() ?? []) {
        params.append('files[]', file);
      }

      const response = await POST(editContentZone.getAttribute('data-update-url')!, {data: params});
      const data = await response.json();
      if (!response.ok) {
        showErrorToast(data?.errorMessage ?? window.config.i18n.error_occurred);
        return;
      }

      reinitializeAreYouSure(editContentZone.querySelector('form')); // the form is no longer dirty
      editContentZone.setAttribute('data-content-version', data.contentVersion);

      // replace the render content with new one, to trigger re-initialization of all features
      const newRenderContent = renderContent.cloneNode(false) as HTMLElement;
      newRenderContent.innerHTML = data.content;
      renderContent.replaceWith(newRenderContent);
      renderContent = newRenderContent;

      rawContent.textContent = comboMarkdownEditor.value();

      if (!commentContent.querySelector('.dropzone-attachments')) {
        if (data.attachments !== '') {
          commentContent.insertAdjacentHTML('beforeend', data.attachments);
        }
      } else if (data.attachments === '') {
        commentContent.querySelector('.dropzone-attachments')!.remove();
      } else {
        commentContent.querySelector('.dropzone-attachments')!.outerHTML = data.attachments;
      }
      comboMarkdownEditor.dropzoneSubmitReload();
    } catch (error) {
      showErrorToast(`Failed to save the content: ${error}`);
      console.error(error);
    } finally {
      renderContent.classList.remove('is-loading');
    }
  };

  // Show write/preview tab and copy raw content as needed
  showElem(editContentZone);
  hideElem(renderContent);

  comboMarkdownEditor = getComboMarkdownEditor(editContentZone.querySelector('.combo-markdown-editor'))!;
  if (!comboMarkdownEditor) {
    editContentZone.innerHTML = document.querySelector('#issue-comment-editor-template')!.innerHTML;