Soul sand and Soul soil have no subtitles for breaking, placing and when being walked on

The bug

Soul sand and Soul soil have no subtitles for breaking, placing and when being walked on in 20w07a

To reproduce

1. Enable subtitles
2. Get yourself some soul sand and soul soil
3. Place them
   → Observe that there is nothing shown in subtitles
4. Walk on those blocks
   → No subtitles either
5. Finally, break those blocks
   → No subtitles either again