The bug
When right clicking on a sweet berry bush, sweet berries are dropped at its location. This does not appear to be tied to its own loot table - it either reuses the loot table for breaking bushes, or is a hardcoded drop.
How to fix
Introduce a dedicated loot table for right clicking on sweet berry bushes.
Linked issues
Comments


Considering similar issues have been fixed MC-267866 i think it can be considered a valid issue.

Thank you for your report!
After consideration, the issue is being closed as Invalid.
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Can confirm in Minecraft 1.21 by code analyzation in
SweetBerryBushBlock#onUse
. I can also not find any loot table relating to this.