Bugfix entity attribute setter

[pvizeli]

Description:

Replace: #8066

Checklist:

If the code does not interact with devices:

• Local tests with tox run successfully. Your PR cannot be merged unless tests pass
• Tests have been added to verify that the new code works.

[mention-bot]

@pvizeli, thanks for your PR! By analyzing the history of the files in this pull request, we identified @balloob, @pavoni and @fabaff to be potential reviewers.

[pvizeli]

I see that make no sense, If a device add assume_state it will go to false anyway.