When we create an object in concurrency (ie: 2 users publish the same obj during the same time). We have a fatal error.

Query error:

Duplicate entry '5106-853b63e86e3eba9ad3fd2fe69d592390' for key 'PR IMARY'.
Query: INSERT INTO ezurlalias_ml (id, parent, lang_mask, text, text_md5, action, action_type, link, is_alias, is_original, alias_redirects)
VALUES(43487 , 5106, 2, 'Commentaire-a-traiter-sur-l-offre-API-click-to-call', '853b63e86e3eb a9ad3fd2fe69d592390', 'eznode:38694', 'eznode', 43487, 0, 1, 1)
[ Feb 01 2012 16:02:48 ] [10.114.13.34] eZDBInterface::commit TRANSID-4f16cf62fe 5e6fca32ef3493c8807b5e:
Transaction in progress failed due to DB error, transaction was rollbacked. Tran saction ID is TRANSID-4f16cf62fe5e6fca32ef3493c8807b5e.

Steps to reproduce

• Open the same folder in admin portal in 2 different browsers.
• Create an article with the same title in each of the browsers.
• Press publish button on both browsers at the same time (or as much overlapping the other as possible)
• The above error will occur.