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347
to_store = self.target.weave_store
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for tree in self.iter_rev_trees(revs):
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revision_id = tree.inventory.root.revision
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parents = inventory_weave.get_parents(revision_id)
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if root_id not in versionedfile:
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versionedfile[root_id] = to_store.get_weave_or_empty(root_id,