[FIX] Migration Yaml BE (Before Engine)
[FIX] Migration Yaml BE (Before Engine)

Takes into account the previously serialized objects weren't namespaced as we didn't have and engine.

ministryofjustice/peoplefinder,ministryofjustice/peoplefinder,MjAbuz/peoplefinder,MjAbuz/peoplefinder,ministryofjustice/peoplefinder,ministryofjustice/peoplefinder,MjAbuz/peoplefinder,MjAbuz/peoplefinder,ministryofjustice/peoplefinder