The DFS cluster handler fails to correctly store file paths containing utf-8 characters, where they differ from ascii. This seems to be because the mysql code in the cluster handler does not set charset on connection.

The attached patch by MK implements this for DFS in the same way as it is done in lib/ezdb/classes/ezmysqldb.php

I am not sure if the bug applies to the DB cluster handler, this needs to be checked.

Problem confirmed on clean eZPublish 4.3.0 during clusterize to DFS Cluster if the TransformationGroup is set to "urlalias_iri" (Unicode Support).