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Duplicate

Votes

11

Found in

2018.3.0b7

2019.1.0a6

2019.2.0a1

2019.2.4f1

2019.3.0a1

2020.1.0a1

Issue ID

1183879

Regression

Yes

Prefab instance changes are reverted when FormerlySerializedAs is applied in a class in a nondefault Namespace

Scene Management

-

How to reproduce:
1. Download and open the attached project "1183879.zip"
2. Inspect TestField values set to PrefabNamespace Asset and instance in the scene
3. Open Player settings window (Edit -> Project Settings -> Player)
4. Add scripting define symbol "FORMERLY_SERIALIZED_AS" in Player window
5. Reimport the PrefabNamespace Asset
6. Inspect the PrefabNamespace instance

Expected result: Prefab instances TestField value remains as set
Actual result: Prefab instances TestField value reverts to a value set in Prefab Asset

Reproducible with: 2018.3.0b7, 2018.4.10f1, 2019.1.0a6, 2019.1.14f1, 2019.2.7f2, 2019.3.0b4, 2020.1.0a5
Not reproducible with: 2017.4.32f1, 2018.3.0b6, 2019.1.0a5

Notes:
The issue is reproducible with Prefab Variants as well.

Comments (2)

  1. 20942619bbd36ec14307d76d2b9f82af?d=mm

    Bastienre4

    Jan 08, 2020 16:41

    This is a big issue for us too.

  2. Cfc92d15d6e1d20ea0afb32f27ed25d9?d=mm

    nuverian

    Jan 07, 2020 18:30

    This is really important and just stumbled on this. I do hope it gets fixed soon.

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