Updated evolution-data-server packages that fix one bug are now available for Red Hat Enterprise Linux 6.
The evolution-data-server packages provide a unified back end for applications which interact with contacts, task and calendar information. Evolution Data Server was originally developed as a back end for Evolution, but is now used by various other applications.
The CalDav calendar back end was converting Uniform Resource Identifiers (URIs) with unescaped space characters or the "%20" string to "%2520". As a consequence, rendering the back end did not allow to contact the remote CalDav service that caused CalDav calendars to be inaccessible. This bug has been fixed and evolution-data-server works correctly in the described scenario.
All users of evolution-data-server are advised to upgrade to these updated packages, which fix this bug.