When statement doesn't get evaluated correctly with include

[Rahul Mehrotra]

when statement doesn't get evaluated properly and always returns true when used in combination of include statement

to reproduce the error

site.yml

---

- include: rds/rds.yml

- include: elasticache/elasticache.yml

- include: acralyzer.yml

  when: env == "prod"

- { include: npmserver.yml, when: env == "prod" }

then executing using the following statement

ansible-playbook site.yml --ask-vault-pass --extra-vars "env=dev" -vvvv

irrespective of the value of env when statement gets evaluated as true and npmserver.yml & acralyzer.yml gets executed.