	$ mkdir patches

	$ cat > patches/series
	< empty1.diff
	< empty2.diff
	$ touch patches/empty1.diff patches/empty2.diff

	$ quilt push -qa
	> Applying patch %{P}empty1.diff
	> Patch %{P}empty1.diff appears to be empty; applied
	> Applying patch %{P}empty2.diff
	> Patch %{P}empty2.diff appears to be empty; applied
	> Now at patch %{P}empty2.diff

	$ quilt rename empty3.diff
	> Patch %{P}empty2.diff renamed to %{P}empty3.diff

	$ quilt pop -qa
	> Patch %{P}empty3.diff appears to be empty, removing
	> Patch %{P}empty1.diff appears to be empty, removing
	> No patches applied

	$ quilt new empty_new.diff
	> Patch %{P}empty_new.diff is now on top

	$ quilt pop -q
	> Patch %{P}empty_new.diff appears to be empty, removing
	> No patches applied

	$ quilt delete empty_new.diff
	> Removed patch %{P}empty_new.diff

	$ quilt rename -P empty3.diff empty_new.diff
	> Patch %{P}empty3.diff renamed to %{P}empty_new.diff
