This implements the pattern of disabling the submit button during form submission to prevent double submissions. Key features: 1) Prevents multiple submissions while processing, 2) Uses try/finally to ensure the button is re-enabled even if submission fails, 3) Maintains good UX by providing visual feedback that submission is in progress, 4) Works with async operations without leaving the form in a stuck state, 5) Should be combined with visual loading indicators for better user feedback.