Attribute with hyphen ('-') not recognized in YAML anymore

[jgverweij]

The problem

Previously this worked: {{ trigger.to_state.attributes.track-and-trace }}

Now it returns an error: Error rendering data template: UndefinedError: 'homeassistant.util.read_only_dict.ReadOnlyDict object' has no attribute 'track'

What version of Home Assistant Core has the issue?

core-2024.8.2

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

No response

Diagnostics information

No response

Example YAML snippet

Same behaviour in Developer Tools:
{{ states.sensor.postnl.attributes.track-and-trace }} <-- ERROR
{{ states.sensor.postnl.attributes['track-and-trace'] }} <-- OK
{{ state_attr('sensor.postnl', 'track-and-trace') }} <-- OK

Anything in the logs that might be useful for us?

Error while executing automation automation.melding_postnl_en_dhl: Error rendering data template: UndefinedError: 'homeassistant.util.read_only_dict.ReadOnlyDict object' has no attribute 'track'

Additional information

No response

[home-assistant[bot]]

Hey there @phracturedblue, @tetienne, @home-assistant/core, mind taking a look at this issue as it has been labeled with an integration (template) you are listed as a code owner for? Thanks!

Code owner commands

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[issue-triage-workflows[bot]]

There hasn't been any activity on this issue recently. Due to the high number of incoming GitHub notifications, we have to clean some of the old issues, as many of them have already been resolved with the latest updates. Please make sure to update to the latest Home Assistant version and check if that solves the issue. Let us know if that works for you by adding a comment 👍 This issue has now been marked as stale and will be closed if no further activity occurs. Thank you for your contributions.

[jgverweij]

Still an issue in 2024.11.2