wait_for_trigger does not catch event trigger in trigger-based template action block

[dbsdbs93]

The problem

The title pretty much sums it up, as does the YAML test case I'm attaching.

I am able to use wait_for_trigger in scripts and in automations to wait for an event using the "event" platform. But the same exact code fails when it's in the action block of a trigger-based template sensor; given a timeout, it simply times out despite the event occurring.

What version of Home Assistant Core has the issue?

core-2025.1.2

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Core

Integration causing the issue

I am actually not sure what integration is responsible for the action blocks; there is no "this" object and no entity that I can find that corresponds to the action block, as opposed to individual sensors.

Link to integration documentation on our website

https://www.home-assistant.io/docs/scripts/#wait-for-a-trigger

Diagnostics information

No response

Example YAML snippet

- trigger:
    - platform:     event
      event_type:   bugtest_event
  action:

    - action:         system_log.write
      data:
        logger:       "bugtest_logger"
        message:      "Template action block triggered on first bugtest_event.  Now waiting for second."

    - wait_for_trigger:
      - platform:     event
        event_type:   bugtest_event
      timeout:            
        seconds:                15

    - if:             " {{ not wait.completed }} "
      then:
      - action:         system_log.write
        data:
          logger:       "bugtest_logger"
          message:      "wait_for_trigger timed out."
              
      else:
        - action:     script.dt_info
          data:
            memo:     "Second bugtest_event received. wait.completed = '{{wait.completed}}'"

Anything in the logs that might be useful for us?

Additional information

I am happy to provide further information. What I've put here is my best attempt to tersely and precisely describe the issue.