view .hgtags @ 1117:30ab5b8ee8ec

fix some rename/copy bugs

- delete copy information when we update dirstate

  hg was keeping the copy state and marking things as copied on
  multiple commits

- files that are renamed should have no parents

  if you do a rename/copy to an existing file, it should not be marked
  as descending from its previous revisions.

- remove spurious print from filelog.renamed

- add some more copy tests

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