certificate: Fix uninitialized member

Change-Id: Iedf125f04c86ba0981693d6592ce91ccf7e00f88
Reviewed-by: Nicolas Jäger <nicolas.jager@savoirfairelinux.com>

src/private/certificate_p.h

@@ -96,7 +96,7 @@ public:
 
    //Attributes
    QString             m_Path                    ;
-   Certificate::Type   m_Type                    ;
+   Certificate::Type   m_Type {Certificate::Type::NONE};
    QByteArray          m_Content                 ;
    LoadingType         m_LoadingType             ;
    QByteArray          m_Id                      ;