Comment 1 for bug 531452

after droping the index

alter table ir_model_data drop constraint ir_model_data_module_name_uniq ;
the problem was this

select name,module,count(*) from ir_model_data group by name,module having count(1)>1
;
          name | module | count
-------------------------+-------------------+-------
 module_meta_information | report_openoffice | 2

./base/module/module.py: 'name': 'module_meta_information',