It depends. If you are working on a new feature that warrants a new branch, you should do that. But if you need a new scaffold for the feature that you are already working on in your current branch, I say no. You can always undo by running script/destroy.

Also, if you just forget a column, you can just add it back to the model, migration, controller, view manually.

Hope it helps.

A branch could be used as an “undo” for those times when you do “script/generate scaffold (…)” and just after running the script you realize that you forgot a column. Then you would delete the branch, create the branch again and run script/generate again.