Instead, insist on a single one.
* dgit sbuild no longer deletes extranious .changes files; instead
we rely on --rm-old-changes, or failing that, fail early.
+ * When doing quilt linearisation, treat upstream .gitignores not
+ in the toplevel the same way we treat ones in the toplevel.
Infrastructure:
* Better error handling in dgit-repos-policy-debian.
* Test quilt single-debian-patch.
* Provide `tartree-edit gitfetchinfo' etc. to help with comparing
different test case git working tree tarballs.
+ * Test dgit-repos-policy-debian with multiple (identical, as it happens)
+ existing taints.
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