Missing VertexColor initialization with Output Quad.

• import the attached package

• Open the scene "VColors_Quad_Issue".
• Look at the VFXG in the scene (VFX_VerteColor_Issues).
• Notice that the Quads are all Black.

Expected Result:  Default Vertex Color of a Quad Output should be (1,1,1,1).
Actual Result : Vertex Color of a Quad Output is (0,0,0,0).

Reproductible in 2023.1.0a5.636 under and above.