Auto inventory letters not working properly or at all in 0.F

Is this intended? Auto inventory letters doesnt seem to work. It only auto assigns letters to stuff I wield or wear. And even then, it somehow assigns the same letters to different objects.
The inventory system was completely changed so maybe this is intended and auto inventory letters just doesnt make sense to have in the game anymore but it was really handy specially when grabbing stuff and accesing them without navigating your inventory because you have just read its letter on the log

This was fixed a few days ago with this pull request:

This means it’s not in 0.F stable, but if you play the experimental, it should be included.
It might also get backported to the 0.F stable release, should there be another bugfix release for it.