The hg repository has to undergo some major changes (Jeff is composing an email that will detail the motivations for this) and to that end we'll need to wipe it and restart it. In short, to connect the old SVN history to the current hg history, I had to run "hg convert" which shuffles all the changeset hashes -- recall that an SHA hash is used to identify every changeset in hg, and it's created by looking at the diff, the parents, etc etc, so splicing in the old history has changed these.
I can handle the conversion process with as many changesets as necesary, but because you will have to re-clone and all the changeset hashes will change, I need to make sure I convert them all to the new repository.
To that end, please push all unpushed changesets immediately. I'm going to close it to push on Monday morning. Anything else will have to be transplanted (which is really not a huge deal, keep in mind ;-) but as of Monday you will have to re-clone.
Sorry for the inconvenience ... I tried really, really hard to avoid this, but because hg has indelible history it's unavoidable. However, I am able to store the old changeset IDs in the new repository, and I'm exploring mechanisms for setting them up as "tags" so that they will still be accessible and point to the new changeset hashes.
Thanks very much,