I agree with mkeash's comment. Isn't this also the whole point of the staging area? "Stage multiple fixes into a single coherent commit," is the underlying model. Instead, in the above example there are many granular commits, with rebasing used to then clump them into a logical grouping.
This would indicate to me that you are committing too often or not using the staging area properly.
Committing often allows you to remember the small changes you made throughout the feature. If you let a file sit in the staging area for hours, days, weeks, you will most likely have a hard time remembering why you made all the changes.
Is there a way to do this with the staging area? o.O
This would indicate to me that you are committing too often or not using the staging area properly.