	$ mkdir patches

	$ echo a > a
	$ echo b > b
	$ diff -u a b > patches/patch
	$ echo patch -p0 > patches/series
	$ rm -f b
	$ quilt push -q
	> Applying patch %{P}patch
	> Now at patch %{P}patch

	$ echo a > a
	$ quilt refresh
	> Nothing in patch %{P}patch
	$ quilt pop
	> Removing patch %{P}patch
	> Restoring a
	>
	> No patches applied
	$ cat a
	> a
	$ cat patches/patch
