workflow I've been describing so far, that's generally just a single
call to git-deborig.
-===== data model slide "commit history structure after upload"
-
So, indeed, let's consider an upload to Debian. (And let's imagine
you made or obtained a suitable orig tarball.)
+===== data model slide "commit history structure after upload"
+
There's a certain amount of bureaucracy to be done. In the usual case
of an upload with dgit, this is all done for you automatically, so you
don't really need to worry about it.