TYPO3 Core

I duplicated this bug report, because i could not reopen it.
The Problem seems only to occur if you use for example "straße" instead of "strasse" as a form field.
This should be catched!

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I created a form (Form version 0.9.0) using the new form wizard in Typo3 4.6.0.

enctype = multipart/form-data
method = post
prefix = tx_form
confirmation = 1
postProcessor {
    1 = mail
    1 {
        recipientEmail = email@domain.com
        senderEmail = another-email@another-domain.com
    }
}
10 = RADIOGROUP
10 {
    class = fieldset-subgroup
    legend {
        value = Geschlecht
    }
    name = Geschlecht
    10 = RADIO
    10 {
        label {
            value = Frau
        }
    }
    20 = RADIO
    20 {
        label {
            value = Herr
        }
    }
}
20 = TEXTLINE
20 {
    name = Titel
    label {
        value = Titel
    }
}
30 = TEXTLINE
30 {
    name = Nachname
    label {
        value = Nachname
    }
}
40 = TEXTLINE
40 {
    name = Vorname
    label {
        value = Vorname
    }
}
50 = TEXTLINE
50 {
    name = E-Mail
    label {
        value = E-Mail
    }
}
60 = TEXTLINE
60 {
    name = Telefon
    label {
        value = Telefon
    }
}
70 = TEXTLINE
70 {
    name = Unternehmen
    label {
        value = Unternehmen / Organisation
    }
}
80 = TEXTLINE
80 {
    name = Funktion
    label {
        value = Funktion
    }
}
90 = TEXTLINE
90 {
    name = Straße
    label {
        value = Straße
    }
}
100 = TEXTLINE
100 {
    name = PLZ
    label {
        value = PLZ
    }
}
110 = TEXTLINE
110 {
    name = Ort
    label {
        value = Ort
    }
}
120 = TEXTLINE
120 {
    name = Land
    label {
        value = Land
    }
}
130 = TEXTBLOCK
130 {
    class = content-textblock
    content = Mit * markierte Felder sind erforderlich.<br>Diese Angaben benötigen wir, um mit Ihnen Kontakt aufzunehmen.
}
140 = TEXTAREA
140 {
    cols = 30
    rows = 5
    name = Nachricht
    label {
        value = Bitte tragen Sie hier Ihre Nachricht an uns ein.
    }
}
150 = RADIOGROUP
150 {
    class = fieldset-subgroup
    name = Datenschutz
    10 = RADIO
    10 {
        label {
            value = Ich habe die Bestimmungen zum Datenschutz sowie die rechtlichen Hinweise im Impressum zur Kenntnis genommen und akzeptiere diese.
        }
    }
}
160 = SUBMIT
160 {
    name = 21
    value = Senden
}
rules {
    1 = required
    1 {
        breakOnError = 0
        showMessage = 1
        message = *
        error = Das Feld ist erforderlich.
        element = Geschlecht
    }
    2 = required
    2 {
        breakOnError = 0
        showMessage = 1
        message = *
        error = Das Feld ist erforderlich.
        element = Nachname
    }
    3 = required
    3 {
        breakOnError = 0
        showMessage = 1
        message = *
        error = Das Feld ist erforderlich.
        element = Vorname
    }
    4 = email
    4 {
        breakOnError = 0
        showMessage = 1
        message = *
        error = Dies ist keine gültige E-Mail-Adresse.
        element = E-Mail
    }
    5 = required
    5 {
        breakOnError = 0
        showMessage = 1
        message = *
        error = Das Feld ist erforderlich.
        element = Datenschutz
    }
}

When I try to send the form I get a blank page only showing this php error:

Fatal error: Call to a member function getValue() on a non-object in /html/typo3/typo3_src-4.6.0/typo3/sysext/form/Classes/Domain/Model/Attributes/Attributes.php on line 154

The error stays after that. I cannot access the form anymore. When I try to load the page which contains the form (just form without the submit) I get the exact same error.

When I switch to

confirmation = 0

I get a different error (this time the utput comes from Typo, not php) upon accessing the page with the form:

Oops, an error occurred!

Address set in PathHeader does not comply with addr-spec of RFC 2822.

Can anyone reproduce the error or give advise?

Best regards