Rails/Savebang fails when persisted? is checked on a broader expression

[searls]

Expected behavior

I'd expect this branch to be allowed by Rails/Savebang, wherein I assign the created post in a conditional and branch on persisted?

  def create(params, user)
    if (post = Post.create(attrs_for(params, user))).persisted?
      Result.new(post, true)
    else
      Result.new(post, false, post.errors.full_messages)
    end
  end

Actual behavior

The above will raise: Use create!instead ofcreateif the return value is not checked. Or checkpersisted?on model returned fromcreate``

RuboCop version

$ [bundle exec] rubocop -V
1.59.0 (using Parser 3.2.2.4, rubocop-ast 1.30.0, running on ruby 3.2.1) [arm64-darwin22]

Also using rubocop-rails 2.23.1