Reference of parent prefab gets lost.

[Carlos Mangas]

When you revert an instance of a prefab inside another prefab the objects referencing the parent prefab lose its reference.

[Carlos Mangas]

It only happens when you revert the entire object.

[Devon Klompmaker]

A current work-around is to shift+select the instance(s) you want to revert on an existing prefab and revert from the scene instead of the project. This doesn't appear to break the references, but reverting from the project does.

Thanks,

[Devon Klompmaker]

Major milestone. This was a very interesting problem to solve as Unity re-creates instances of prefabs if major hierarchy changes occur. This is resolved in v1.5 and I'll send you it ahead of time so you can confirm.