...?
If you right click on something by accident, and then have harvested it, you have damaged the original plant and cannot reverse the process.
The action is therefore destructive.
Jorb believes that destructive actions should have prompts.
Before you destroy things, the game should let you know that you're about to destroy something.
You should have a context menu when you use the right mouse button for harvesting, or you should have to chose a mode before you can start harvesting.