fix _tags for oasis 0.4.0
fix _tags for oasis 0.4.0

dinosaure/core_kernel,tmcgilchrist/core_kernel,mmottl/core_kernel,mmottl/core_kernel,dinosaure/core_kernel,janestreet/core_kernel,tmcgilchrist/core_kernel,janestreet/core_kernel,mmottl/core_kernel,dinosaure/core_kernel,tmcgilchrist/core_kernel