Ian Jackson writes ("Re: Status of dgit (good for NMUs and fast-forwarding Debian branches)"):
> In particular, if the package you are working with leaves droppings in
> the source tree which its clean target doesn't pick up,
> dgit sbuild -wg
> will use git-clean to remove them before building the source package.
> So your source package won't contain the droppings.
I mean
dgit -wg sbuild
Ian.