[SampleSet] Do not load delayed attributes by not copying them over

4 jobs for lighter-samplesets in 14 minutes and 1 second (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #237887
docker
build_linux_37

00:11:53

passed #237888
docker
build_linux_38

00:11:37

passed #237885
intel macos
build_macos_intel_37

00:14:01

passed #237886
intel macos
build_macos_intel_38

00:13:48