Fix: Avoid creating uninitialized attribute in distribute points node

Interpolation from edge attributes is unsupported, and the data
of the new point attribute was uninitialized. As a fix, just avoid
interpolating edge attributes in the first place.

source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc

@@ -305,6 +305,9 @@ BLI_NOINLINE static void propagate_existing_attributes(
     if (!src) {
       continue;
     }
+    if (src.domain == ATTR_DOMAIN_EDGE) {
+      continue;
+    }
 
     GSpanAttributeWriter dst = point_attributes.lookup_or_add_for_write_only_span(
         attribute_id, ATTR_DOMAIN_POINT, output_data_type);