FIX: try to make topic_tracking_state_spec stable (PR #10419)

Sometime parallel spec if failing with error:

       undefined method `data' for nil:NilClass
     # ./spec/models/topic_tracking_state_spec.rb:339:in `block (4 levels) in <main>'

I have a theory that it might be related to instance variables in before block

@tgxworld could you take a look if that theory makes any sense to you? If not at all, let’s drop it as it is a wild guess


Cool lets try it out.