BTW at least when I have re-duploaded those corrections to mentors.debian.net
the package was updated just fine even thow the revision didn't change.
I would actually expect what you have described but seems that it's not
like that.
Mentors uses the simple dinstall method but the Debian archive has a full-fledged dak running. So you would not be able to change something in a revision already uploaded to the official archives.
Regards, Philipp Kern
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