Bug Report

Default values are displayed in admin panel only for newly created objects

Expected behavior

When adding a new select field with default value, all existing objects should have this value set.

Actual behavior

Only newly created objects have the default value set. Previously existing objects have (Empty) in edit mode and null on the grid displayed.

Steps to reproduce

Add new select field to an existing class, set default value. Open existing object - it will have no value set ((Empty)). Open grid - null is displayed there.
Create new object - it has default value correctly displayed in both cases.