message: Fixes bug
  * Fixes bug - export molecule fails silently back to dialog
  The do while loop on line 123 was causing the issue.
  * Update fileformatdialog.cpp
diff: @@ -91,8 +91,9 @@ FileFormatDialog::FormatFilePair FileFormatDialog::fileToWrite(
  // Use the default read filter if none specified:
  const QString realFilter = filter.isEmpty() ? writeFileFilter() : filter;
  +QString fileName;
  do { // jump point for continue statements on retry
  - QString fileName =
  + fileName =
  QFileDialog::getSaveFileName(parentWidget, caption, dir, realFilter);
  if (fileName.isEmpty()) // user cancel
  @@ -120,7 +121,7 @@ FileFormatDialog::FormatFilePair FileFormatDialog::fileToWrite(
  result.first = format;
  result.second = fileName;
  - } while (true);
  + } while (fileName.isEmpty());
  return result;
  }
  