String "None" is always value none no matter what

[TheEris]

The problem

When you try to pass "None" as a string in templates (using {{ 'None' }} ) it returns the value None. No matter how you formate it according to docs from Jinja. I've tried {% raw %} None {% endraw %} and {{ 'None' }}.

This template return string "Something" when the X is false, and no value when true. It should return the string "None".

{% set x = true %}
{% if x == true %}
{{ 'None' }}
{% else %}
{{ 'Something' }}
{% endif %}

This is true even if you try to separate the None string into two parts. Like this:

{% set x = true %}
{% if x == true %}
{{ 'No' }}{{ 'ne' }}
{% else %}
{{ 'Some' }}{{ 'thing' }}
{% endif %}

it will return the string "Something" just ok, but the value none if X is true.
Also true for this case:

{% set x = true %}
{% if x == true %}
{{ 'No' }}ne
{% else %}
{{ 'Some' }}thing
{% endif %}

This also applies to the {% raw %}

{% set x = true %}
{% if x == true %}
{% raw %} None {% endraw %}
{% else %}
{% raw %} Something {% endraw %}
{% endif %}

This also returns the value none instead of the string "None".
But this returns string "{{ 'None' }}"

{% set x = true %}
{% if x == true %}
{% raw %} {{ 'None' }} {% endraw %}
{% else %}
{% raw %} {{ 'Something' }} {% endraw %}
{% endif %}

What is version of Home Assistant Core has the issue?

core-2021.5.4

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

No response

Link to integration documentation on our website

https://www.home-assistant.io/docs/configuration/templating/

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[frenck]

This is currently a known limitation, we evaluate the output of template back to native types. Which causes this.

[TheEris]

is there a workaround for this? I would like to pass the "None" effect for esphome light in the template.

[frenck]

If you call a service for that, you can use a choose to do it without a template in that case.

[TheEris]

that's my workaround for now. I wanted to have a neat single template that handles it in a single go, but this works too.