Don't use _matrix as default if there isn't one
Don't use _matrix as default if there isn't one

vector-im/riot-web,vector-im/riot-web,vector-im/riot-web,vector-im/vector-web,martindale/vector,vector-im/riot-web,vector-im/riot-web,vector-im/vector-web,vector-im/vector-web,vector-im/vector-web,martindale/vector,vector-im/vector-web,vector-im/riot-web