Why if block does not work inside another block

[Hos.Mercury]

I have this code :

<div id="content d-flex justify-content-center align-items-center">
    {% block content %}

    {# flash messages #}
    {% if let Some(message) = message %}
    <span class="bg-danger text-white d-flex justify-content-center container-fluid">
      <strong class="">{{ message }}</strong>
    </span>
    {% endif %}

    {% endblock %}
  </div>
  

The part commented flash messages does not show inside the block unless I moved it outside the bloc like this :

<div id="content d-flex justify-content-center align-items-center">
    {# flash messages #}
    {% if let Some(message) = message %}
    <span class="bg-danger text-white d-flex justify-content-center container-fluid">
      <strong class="">{{ message }}</strong>
    </span>
    {% endif %}

    {% block content %}

    {% endblock %}
  </div>

what If wanted it like the first example code inside the block ?

[Dirkjan Ochtman]

Is this at the top level of your template? Where is the message value coming from?

[Hos.Mercury]

yes it is the base templ

[Hos.Mercury]

Is this at the top level of your template? Where is the message value coming from?

yes

[Dirkjan Ochtman]

This probably has something to do with the inheritance setup, but it's hard to say for sure without more context (like your type definitions -- ideally, a full reproducible example).