Fixed a bug in getRevisionList (it expected and returned integers, while...

Fixed a bug in getRevisionList (it expected and returned integers, while getRevision returns a string). Tested.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15431 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Document.py

@@ -772,7 +772,10 @@ class Document(XMLObject, UrlMixIn, ConversionCacheMixin, SnapshotMixin):
       Returns the list of revision numbers of the current document
       by by analysing the change log of the current object.
     """
-    return range(0, self.getRevision())
+    revision = self.getRevision()
+    if revision == '':
+      return []
+    return [str(r) for r in range(0, int(self.getRevision()))]
 
   security.declareProtected(Permissions.ModifyPortalContent, 'mergeRevision')
   def mergeRevision(self):