Many2One default values are not rendered correctly on wizards
With the following scenario:
1. Install the production module
2. Create a new product variant
3. Use the BOM Tree relate to open the Product Tree.
The unit field of the wizard has a default value, but it is not rendered correctly on the client: THE unit *rec_name is not shown* but the clear and edit buttons are shown and the internal value is set.
Redisplaying the view after setting defaults seems to fix it.