DB Migration Error - Not Sure Where to File Bug

Hello all,

I have upgraded Openerp-Server from version 5.0.5-1 (in Ubuntu Karmic repo) to version 5.0.15. I get the following error in the OpenErp client application when the migration of the db fails:

Last revision No. & ID :Bazaar Package not Found !Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/netsvc.py", line 299, in dispatch
    result = LocalService(service_name)(method, *params)
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/netsvc.py", line 77, in __call__
    return getattr(self, method)(*params)
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/service/web_services.py", line 341, in migrate_databases
    pooler.restart_pool(db, force_demo=False, update_module=True)
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/pooler.py", line 61, in restart_pool
    return get_db_and_pool(db_name, force_demo, status, update_module=update_module)
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/pooler.py", line 40, in get_db_and_pool
    addons.load_modules(db, force_demo, status, update_module)
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/addons/__init__.py", line 736, in load_modules
    r = load_module_graph(cr, graph, status, report=report)
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/addons/__init__.py", line 579, in load_module_graph
    init_module_objects(cr, package.name, modules)
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/addons/__init__.py", line 368, in init_module_objects
    obj.init(cr)
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/addons/hr_timesheet_sheet/hr_timesheet_sheet.py", line 645, in init
    )) AS bar""")
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/sql_db.py", line 78, in wrapper
    return f(self, *args, **kwargs)
  File "/usr/local/lib/python2.6/dist-packages/openerp-server/sql_db.py", line 123, in execute
    res = self._obj.execute(query, params)
ProgrammingError: cannot change data type of view column "total_difference" from numeric to double precision

bzr is installed (from the repos). Where should I file this bug (or is it even a bug at all?).

Thanks,
Brad