Bug about 'contrast_prob_diff'

[Betswish]

🐛 Bug Report

Hi Inseq team, thanks again for your contribution.
I just noticed a bug when using 'contrast_prob_diff' - output attributions seem to be reversed.
It outputs the attribution of false_answer but not true_answer.

🔬 How To Reproduce

What I did is:

1. use contrast_prob_diff, and the output attribute for 'morning' and 'evening' is:
   
   

2. use probability (where the variable target_false is useless), and the output attribute for 'morning' and 'evening' is:
   
   

The code for the attribute part is: (top: contrast_prob_diff; bottom: probability)

[gsarti]

@Betswish The behavior should be fixed now, please let me know if you face any issue!