Convert to base format before trying to find destination formats.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@14420 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5OOo/Document/OOoDocument.py

@@ -179,6 +179,9 @@ class OOoDocument(File, ConversionCacheMixin):
       NOTE: it is the responsability of the conversion server
       to provide an extensive list of conversion formats.
     """
+    if not self.hasBaseData():
+      self.convertToBaseFormat()
+
     def cached_getTargetFormatItemList(content_type):
       server_proxy = self._mkProxy()
       try: