view mercurial/__init__.py @ 1072:05dc7aba22eb

Fixes for push corner case

TAH found a bug where push would push things the remote already had,
raising an assertion. This turned out to be because the changeset
protocol was not recording a common subset node in one case.

Also discovered was that the protocol was queueing multiple copies of
a node for pull. Fixed by changing fetch to a hash.

Add some more debugging output.