Order by with Custom Field Facets does not work

[rolf.sigg@…]

[jira2trac import : issue created on February 14, 2008 2:59:08 PM CET ​http://issues.cocoondev.org/browse/DSY-611 ]

If a facet is declared via custom field (#xyz), and ordering via the "Order By" dropdown in the faceted browser is selected (for the custom field facet), the following query error is shown:
{{noformat}}
Received exception from repository server.
Error performing query.
Error parsing expression.
Encountered "<EOF>" at line 1, column 140. Was expecting one of: "(" ... <ID> ... <LITERAL> ...
{{noformat}}

I think this has to do with escaping the # in the query parameter of the new URL, but was not able to track the error further down.