Recaptcha is not shown again on form error

[mitar]

If one of required fields is not filled out but Recaptcha is checked and then form is submitted, the form (correctly) redirects back and shows an error, but Recaptcha is not shown again. So if you now fill out form correctly and submit, then you get Recaptcha error and then you get redirected once more back, this time form is shown with Recaptcha. And then you have an opportunity to fill form again (password fields get cleared) and check Recaptcha and submit.

Recaptcha should be shown every time.