+ * dgit(1): Encourage --overwrite rather than --overwrite=version.
+ * test suite: unset GIT_EDITOR, so it works if user has that set.
+ * git-debrebase: Improve laundry performance by a factor of ~55:1,
+ and analysis performance by factor of ~4.2:1. Closes:#905995.
+ * git-debrebase: `prepush' is now a silent no-op if the branch is
+ unstitched. This is more friendly.
+ * git-debrebase: On rebase, always save ffq-prev even if we were
+ both stitched and laundered. Closes:#905975.