XML parsing mandating the 'force' attribute on username-to-dn even though it has a default value.

Trying so, I run in the error (when starting WildFly)  :
10:28:29,674 ERROR [org.jboss.as.server] (Controller Boot Thread) JBAS015956: Caught exception during boot: org.jboss.as.controller.persistence.ConfigurationPersistenceException: JBAS014676: Failed to parse configuration
  at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:112) [wildfly-controller-8.0.0.Final.jar:8.0.0.Final]
  at org.jboss.as.server.ServerService.boot(ServerService.java:331) [wildfly-server-8.0.0.Final.jar:8.0.0.Final]
  at org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:256) [wildfly-controller-8.0.0.Final.jar:8.0.0.Final]
  at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_40]
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[76,25]
Message: JBAS014724: Missing required attribute(s): FORCE
  at org.jboss.as.controller.parsing.ParseUtils.missingRequired(ParseUtils.java:134) [wildfly-controller-8.0.0.Final.jar:8.0.0.Final]
  at org.jboss.as.domain.management.parsing.ManagementXml.parseUsernameToDn_2_0(ManagementXml.java:2118) [wildfly-domain-management-8.0.0.Final.jar:8.0.0.Final]

            <security-realm name="MgtRealm">
                <authentication>
                    <ldap connection="ovodavLDAP" base-dn="ou=People,dc=hydrogenic,dc=local">
                        <!-- <advanced-filter filter="(&amp;(cn=jboss-admin)(member=uid={0},ou=People,dc=hydrogenic,dc=local))" recursive="true"/> -->
                        <username-filter attribute="uid"/>
                    </ldap>
                </authentication>
                <authorization>
                    <ldap connection="ovodavLDAP">
                        <username-to-dn>
                            <username-filter base-dn="ou=People,dc=hydrogenic,dc=local" recursive="false" attribute="uid" user-dn-attribute="dn" />
                        </username-to-dn>
                        <group-search group-name="SIMPLE" iterative="true" group-dn-attribute="dn" group-name-attribute="uid">
                            <group-to-principal base-dn="ou=Groups,dc=hydrogenic,dc=local" recursive="true" search-by="DISTINGUISHED_NAME">
                                <membership-filter principal-attribute="uniqueMember" />
                            </group-to-principal>
                        </group-search>
                    </ldap>
                </authorization>              
            </security-realm>