Custom attributes will be duplicated upon upgrading if a built-in attribute name was used in versions 2022.3 and earlier

1. In 2022.3 project I had an attribute named 'Seed' after upgrading to 6000.x versions this property was duplicated and in Custom attribute section we now have 'Seed' and 'Seed_1" attributes and an error thrown to the console.
2. Deleting that 'Seed' attribute from blackboard also deleted 'Scale' block from Output context

1. How to reproduce:

1. Import the attached package to 6000.x version
2. Open Smoke1 VFX
3. Observe that there are custom attributes of 'Seed' and 'Seed_1" and error message in the console

Expected result:

1. Seed is converted to Seed_1 and port connections remain the same
2. Seed attribute is removed from Custom Attributes list after version upgrade
3. User is informed in console message that Seed name changed to Seed_1 in user friendly language

Actual result: Seed and Seed_1 is in Custom property list and error message is thrown to the console "Exception while sanitizing model: Set 'Seed' Random (Per-component) (Vector2) of type UnityEditor.VFX.Block.SetCustomAttribute: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <a6d715f5ce8c4754a140b50ff638878a>:0 
  at System.Collections.ObjectModel.ReadOnlyCollection`1[T].get_Item (System.Int32 index) [0x00000] in <a6d715f5ce8c4754a140b50ff638878a>:0 "

 

2. How to reproduce:

1. Delete Seed attribute from blackboard (This Seed attribute was connected to Scale.XZ port in 22.3 stream)

Actual result: Seed is deleted and Scale.XZ block is also deleted

Expected result: Clipboard operations for Custom attributes are not shared among other graph elements i.e it does not delete blocks

Notes:

• If issue is not reproducible after trying once, close and reopen your project and try again