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Viewing changes to bzrlib/mutabletree.py

merge bzr.dev@4126 into brisbane-core

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bzrlib/mutabletree.py
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        # WorkingTree classes for optimised versions for specific format trees.
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        basis = self.basis_tree()
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        basis.lock_read()
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        inventory = basis.inventory
 
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        # TODO: Consider re-evaluating the need for this with CHKInventory
 
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        # we don't strictly need to mutate an inventory for this
 
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        # it only makes sense when apply_delta is cheaper than get_inventory()
 
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        inventory = basis.inventory._get_mutable_inventory()
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        basis.unlock()
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        inventory.apply_delta(delta)
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        rev_tree = RevisionTree(self.branch.repository, inventory, new_revid)