Incorrect UV coordinates when visualizing mesh painting texutre on Nanite splines

The UV coordinates for visualizing the mesh painting texture on Nanite spline meshes are not working correctly. This runs the code in the NANITE_VISUALIZE_MESH_PAINT_TEXTURE section in NaniteVisualize.usf

• Create a new blank project
• Duplicate the cylinder static mesh, convert it to Nanite and add it to the scene
• Create a spline Blueprint with 3 nodes in the construction script: "Add Spline Mesh Component", "Set Static Mesh" with its New Mesh field pointing to the Nanite cylinder mesh created previously and "Set Forward Axis" with Z as the forward axis
• Change to Mesh Paint Mode
• Select the cylinder static mesh
• Select the Textures tab
• Select Paint mode
• Select Color View Mode: RGB Channels
• Note that the UV coordinates are correct
• Select the spline mesh
• Note that the UV coordinates are wrong