datasmithAreaLightActor cannot be changed in editor

1. Import the Ligth_strip.udatasmith
2. try to change properties on the Reception_Light_Strip_-_Light_1 lights
   1. dimensions
   2. light shape

No changes are visible.

If a datasmith area light (/Engine/Plugins/Enterprise/DatasmithContent/Content/Datasmith/DatasmithAreaLight.uasset) is spawn into the scene, this one can be edited.

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