While MC-260277 was resolved as fixed, potted_torchflower, while mentioned in (only) the title of the report, is still not included in the #flower_pots block tag. Again, this affects commands, advancements, and predicates.

Steps to Reproduce:
In game:

• Open a world with 1.20 experiments
• Place down a flower pot and put a torchflower inside of it
• Open the debug screen (F3) while aiming at the potted torchflower
  • Observed: no block tags are visible
  • Expected: the tag #flower_pots is present

In the game files: 

• Navigate to version jar (\.minecraft\versions\<version>\<version>.jar)
  • On windows, this can be easily accessed by running %appdata%\.minecraft\versions\<version> in Run window (Win+R)
  • Replace <version> with latest snapshot/pre-release/release candidate/release
    • For example, for 1.19.4 Pre-release 3, go to \.minecraft\versions\1.19.4-pre3\1.19.4-pre3.jar
  • Version must be launched at least once through the official launcher to generate the jar file
  • Alternatively, you can navigate to https://piston-meta.mojang.com/mc/game/version_manifest_v2.json, follow the URL to the affected version (will typically be the first one in the list "versions"), and follow the URL on that page to client.jar (you can just search "client.jar" and there should be one result)
    • Following the jar link should download the jar file

• Open the jar file with an archive software such as WinRAR (or make a copy of the jar file and add .zip to the end of the file name past the file extension and open the zip)
• navigate to data\minecraft\tags\blocks and data\minecraft\datapacks\update_1_20\data\minecraft\tags\blocks
• Open flower_pots.json
  • Observed: minecraft:potted_torchflower is not present in either file
  • Expected: minecraft:potted_torchflower is present in flower_pots.json in update_1_20 experimental pack