tofu shows "no changes" when output sensitivity has changed

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OpenTofu Version

Latest dev version from main:

OpenTofu v1.10.0-dev
on darwin_arm64

OpenTofu Configuration Files

output "a" {
  value = "a's value"
  # sensitive = true # <- this is the actual change to the configuration
}

Debug Output

Irrelevant for this case.

Expected Behavior

If I change the sensitivity of an output, I would expect to see that in the list of changes on tofu apply.

Actual Behavior

Running tofu apply results in "No changes. Your infrastructure matches the configuration." and a prompt to run an apply.

Steps to Reproduce

1. Run tofu apply
2. Change the sensitivity of an output
3. Run tofu apply

Additional Context

I found this issue during the work on deprecation of module outputs (https://github.com/opentofu/opentofu/pull/2679). If the deprecated field ends up in the state, this issue would be relevant for changes in the deprecation of module outputs as well.

References

No response