                     valueLink: @linkState 'to'
                     label: t 'compose to'
                     ref: 'to'
+                        key: 'to-' + prefixKey
 
                 MailsInput
                     id: 'compose-cc'


        classLabel = 'compose-label'
        classInput = 'compose-input'

        focusEditor = Array.isArray(@state.to) and
            @state.to.length > 0 and

                    label: t 'compose bcc'
                    placeholder: t 'compose bcc help'
                    ref: 'bcc'
                    key: 'bcc-' + prefixKey

                div className: 'form-group',
                    div className: classInput,
