* Don't break if user has push.followTags=true. Closes:#827878.
* Arrange for the special dgit remote to be skipped by git fetch --all
etc. Closes:#827892.
+ * Allow local git config options to override user-global ones,
+ as is proper. Closes:#835858.
+ * Get sense of failed clone failed cleanup error reporting check
+ correct. Closes:#796773.
Test suite:
* When sbuild fails, do not crash due to sed not finding the log