[FIX] Importation when fails,needs cursor to be rolled back

bzr revid: jvo@tinyerp.com-20091214095643-2ykgs3849tj7smzj

bin/osv/orm.py

@@ -843,6 +843,8 @@ class orm_template(object):
             except Exception, e:
                 import psycopg2
                 import osv
+                #Needed to rollback the cursor for letting the _('text') work
+                cr.rollback()
                 if isinstance(e,psycopg2.IntegrityError):
                     msg= _('Insertion Failed! ')
                     for key in self.pool._sql_error.keys():