ytt with_data_values bug

config.yml

  #@ load("@ytt:template", "template")
  #@ load("@ytt:library", "library")
  #@ load("@ytt:data", "data")

  #@ def apps():
  names: 
  - app3
  #@ end

  #@ backend = library.get("lib").with_data_values(apps())

  --- #@ template.replace(backend.eval())

lib_config.yml

#@ load("@ytt:data", "data")

names: #@ data.values.names

lib_values.yml

#@data/values
---
names:
- app1
- app2