diff -c /usr/lib/python2.4/site-packages/roundup/backends/rdbms_common.py.orig /usr/lib/python2.4/site-packages/roundup/backends/rdbms_common.py
*** /usr/lib/python2.4/site-packages/roundup/backends/rdbms_common.py.orig	2009-08-31 13:21:06.000000000 +0200
--- /usr/lib/python2.4/site-packages/roundup/backends/rdbms_common.py	2009-08-31 13:21:06.000000000 +0200
***************
*** 2171,2177 ****
          # figure the WHERE clause from the filterspec
          mlfilt = 0      # are we joining with Multilink tables?
          sortattr = self._sortattr (group = group, sort = sort)
!         proptree = self._proptree(filterspec, sortattr)
          mlseen = 0
          for pt in reversed(proptree.sortattr):
              p = pt
--- 2171,2180 ----
          # figure the WHERE clause from the filterspec
          mlfilt = 0      # are we joining with Multilink tables?
          sortattr = self._sortattr (group = group, sort = sort)
!         if 'filterspec' in filterspec:
!             proptree = self._proptree(filterspec['filterspec'], sortattr)
!         else:
!             proptree = self._proptree(filterspec, sortattr)
          mlseen = 0
          for pt in reversed(proptree.sortattr):
              p = pt