Checked out revision 0. A a Adding a Transmitting file data . Committed revision 1. % initial roundtrip scanning source... sorting... converting... 0 added a scanning source... sorting... converting... % second roundtrip should do nothing scanning source... sorting... converting... scanning source... sorting... converting... % new hg rev updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved % adding an empty revision % echo hg to svn scanning source... sorting... converting... 1 b 0 emtpy % svn back to hg should do nothing scanning source... sorting... converting... % hg back to svn should do nothing scanning source... sorting... converting...