We have defined a class with one "text line" attribute.
When we try to create an object of this class with some content (see below), some error occurs:

Fatal error: A database transaction in eZ Publish failed.

The current execution was stopped to prevent further problems.
You should contact the System Administrator of this site with the information on this page.
The current transaction ID is TRANSID-0666d985438d64a2e57e203df0dad5b9 and has been logged.
Please include the transaction ID and the current URL when contacting the system administrator.

It seems to come from setObjectStatusPublished function ( $node->setName( $object->attribute( 'name' ) ) in kernel/content/ezcontentoperationcollection.php