Filter does not fail when is missing

[mnecas]

SUMMARY

Hi,
I noticed that the ansible filter does not fail when you use it like this test.test.list even that the filter does not exist.
Im not sure if its by design or if its an issue.
Mainly it could be issue when creating collections and mistype the name.

ISSUE TYPE

• Bug Report

COMPONENT NAME

filter

ANSIBLE VERSION

ansible 2.9.2
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Aug  7 2019, 00:51:29) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]

OS / ENVIRONMENT

CentOS Linux release 7.7.1908 (Core)

STEPS TO REPRODUCE

1. test.test.list or test.list does not exist
2. run this playbook

---
- name: name
  hosts: localhost
  vars:
    var_name:
      something: test
  tasks:
    - debug:
        msg: "{{ var_name | test.test.list }}"
#works 
    - debug:
        msg: "{{ var_name | test.list }}"
#fails 

EXPECTED RESULTS

Show error when the filter is not found.

ACTUAL RESULTS

Debug msg: "{{ var_name | test.test.list }}"

[ansibot]

Files identified in the description:

• lib/ansible/modules/files/file.py

If these files are inaccurate, please update the component name section of the description or use the !component bot command.

click here for bot help

[sivel]

!component =lib/ansible/utils/collection_loader.py

cc @nitzmahone

[ansibot]

Files identified in the description:

• lib/ansible/utils/collection_loader.py

If these files are inaccurate, please update the component name section of the description or use the !component bot command.

click here for bot help