#[Bug][1.2.0-pre.6] Incremental baking does not use `UseReferentialEquality`

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limpid cargo
#

Hello,

It seems that the incremental baking always considers components with an Entity field to differ between the conversion and conversion (shadow) worlds. And therefore are often re-copied to the runtime world even if they have not changed, which can reset some fields when it was not intended.

After a multi-day investigation (😅), I noticed in LiveConversionDiffGenerator.cs/UpdateLiveConversion (Line 438) that the EntityManagerDifferOptions UseReferentialEquality is somehow not used:

const EntityManagerDifferOptions options =
    EntityManagerDifferOptions.IncludeForwardChangeSet |
    EntityManagerDifferOptions.FastForwardShadowWorld |
    EntityManagerDifferOptions.ValidateUniqueEntityGuid |
    EntityManagerDifferOptions.ClearMissingReferences;

I suppose this was not an issue when entities in the conversion and shadow worlds shared the same ids, but now that ids differ it leads to those painful issues.