* During push, automatically calculate which .origs are required,
so user never needs [--ch:]-sa or [--ch:]-sd. Closes:#829116.
* Properly look for .origs etc. in .., fetching them less often.
+ * New import-dsc feature.
+ * Test suite: Explicitly configure user.name and user.email, so
+ that tests work when environment doesn't have defaults.
+ Closes:#842279 (I hope).
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