I'm using the csv importer for some date fields. The import works fine when the date field is a single value (in the schema). When I use the multi-value checkbox for the same field, I get this error:

2015-10-23 14:25:12,373 ERROR [Nuxeo-Work-csvImporter-9] [org.nuxeo.ecm.csv.CSVImporterWork] Line 2: Unable to create document: item of list property 'ph:apptdate': value is not a Calendar: 10/11/1999

Any suggestions?