Small changes

source/fb2dlgs.cpp

@@ -84,6 +84,7 @@ Fb2NoteDlg::Fb2NoteDlg(Fb2WebView &view)
     page->setNetworkAccessManager(view.page()->networkAccessManager());
     page->setContentEditable(true);
     ui->m_text->setPage(page);
+    ui->m_text->setHtml("<p></p>");
 
     FB2::addTools(ui->m_toolbar, ui->m_text);
 }

source/fb2tree.cpp

@@ -206,6 +206,7 @@ void Fb2TreeModel::expandBody(QTreeView *view)
 void Fb2TreeModel::selectText(const QModelIndex &index)
 {
     Fb2TreeItem *node = item(index);
+    if (!node) return;
     QWebFrame *frame = m_view.page()->mainFrame();
     if (node) frame->scroll(0, node->pos().y() - frame->scrollPosition().y());