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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#!/bin/sh

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hg init

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echo "[hooks]" > .hg/hgrc

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echo 'precommit = echo precommit hook' >> .hg/hgrc

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echo 'commit = echo commit hook: $NODE' >> .hg/hgrc

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echo a > a

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hg add a

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hg commit -m "test" -d "0 0"