NetworkPrefabsList Is Populating The Same Prefabs Multiple Times

[JayPeet]

Description

When NetworkObject prefabs are imported, they get added to the default NetworkPrefabsList multiple times.
This causes the error 'NetworkPrefab (Player) has a duplicate GlobalObjectIdHash source entry value of: 2824519432!' on entering play mode.

Additionally, sometimes when a prefab is added to the list, it does not save them to the asset.

Reproduce Steps

1. Make a new project, and setup NGO
2. Make a player prefab
3. Reimport the prefab.

Actual Outcome

The prefab is in the DefaultNetworkPrefabs asset twice.

Expected Outcome

The prefab is only in the list once.

Screenshots

Environment

• OS: Windows 10
• Unity Version: 2022.2.8f1
• Netcode Version: 86889a3
• Netcode Commit: 86889a3

[NoelStephensUnity]

This was resolved prior to the feature release and should not occur in v1.3.0 (when it is made public). 👍